Markdown File Example

Is there a way to create a URL anchor, link from within a Markdown file, to another file within the same repository and branch (aka a link relative to the current branch)? For example, in the master branch I have a README.md file, which I would like do something like: # My Project is really really cool. Markdown files¶ You can write content in regular Markdown files (e.g., files ending in.md). Jupyter Book supports any Markdown syntax that is supported by Jupyter notebooks. Jupyter Notebook Markdown is an extension of a flavour of Markdown called CommonMark Markdown. It has many elements for standard text processing, though it lacks a lot of.

The file name readme contains a simple instruction and for good reason. The readme file is typically the first file a developer will look at before beginning a project. It’s also important that developers know how to write a good readme file that conveys all the relevant information in a concise manner.

What are readme files and why do I need them?

A readme file – often created as readme.txt or readme.md – usually contains important information about the respective system, project or software. To ensure users can find the file straight away, it should ideally be placed in the top directory level.

README is often written in capital letters. Systems that differentiate between upper and lower case will then list the file before all other files that begin with lower-case letters.

The file also fulfills different purposes for different users:

  • For end users, a readme file answers questions about installing, updating or using the software.
  • For your own development work, a readme file provides two advantages. On the one hand, a readme file written prior to the start of development provides a guideline for implementing the project. On the other hand, it lets you resume work quickly if a project was previously set aside for a prolonged period of time.
  • For other developers, a readme file clarifies the codex and provides key information for further development or use of a system, software or an open-source project.

What should a readme file contain?

Depending on the purpose of a readme file, the following content in particular may be relevant:

  • A general description of the system or project
  • The project status is important if the project is still in development. Use the file to mention planned changes and the development direction or indicate the completion date of the project.
  • The requirements on the development environment for integration
  • A guide to installation and use
  • A list of technology used and any links to further information related to this technology
  • Open-source projects that the developers independently modify or expand should be contained in a section on “desired collaboration” in the readme.md file. How should problems be handled? How should developers advance the changes?
  • Known bugs and any bug fixes
  • FAQ section with all previously asked questions
  • Copyright and licensing information

It’s important to write the readme file so that it is always aimed at the end user. This will resolve most of the questions that potentially arise.

Possible file formats for readme files

You can write and save a readme file in any text file format you wish. Formats may include readme.txt, readme.doc, and readme.1st. Depending on the platform the software should run on, the format of the readme file should be adjusted to the respective system and the associated text program. This ensures that the word processor is able to read the file.

Today, developers mostly use the readme.md format. But what is an .md file? The file ending indicates a readme file in markdown format. Markdown converts text into HTML using simple formatting characters. A well-formatted and structured readme file gives users a comprehensive overview of the project.

Readme.md: an example in markdown format

We show you piece by piece how a readme.md is structured and what formatting options exist with the markdown format. To enable global collaboration and prevent language barriers, you should always write the readme file in English.

Readme example in markdown format:

The top of a readme file should contain a suitable project name and a short explanation about what the project is about. In markdown format, a hash sign “#” indicates the start of a headline. The number of hash signs determines the type of headline:

For extensive documentation, a clear table of contents provides a useful overview:

The table of contents can be structured with an ordered list in the readme.md. Simply insert the corresponding number at the start of the row and the list is created.

GitHub automatically adds IDs for the headlines in the readme file. The IDs are derived from the name of the headline and a hyphen “-” replaces the spaces. They are ideal for use as anchor navigation in the table of contents. If the readme.md is intended for a different platform that does not automatically assign IDs to headlines, anchor navigation can be created with HTML:

The table of contents are followed by the individual blocks of content on the respective points:

General information about the project is important to provide an impression of what it contains, in addition to a short explanation. A markdown also allows you to insert graphics, screenshots or other images into the documentation. Simply write a descriptive word in square brackets followed by the URL for the image in round brackets (without spaces in between). Enter an exclamation mark in front, so that markdown interprets it as an image file.

You can create bullet points in an unordered list in markdown format using an asterisk “*” at the beginning of the line.

Markdown File Examples

Links can be inserted anywhere in the readme.md. The structure is very similar to an image file, but without the exclamation mark at the beginning of the line. Write the word to be linked in square brackets, followed by the path to the website in round brackets (likewise without any spaces between).

The file should always be in the same repository. You can also use other publicly available files. However, there is a risk that the owner may delete these files at some point, thereby removing them from your readme.md.

Since a readme file is often used in the context of software development, it can be a good idea to include examples of source text in the document. Markdown provides a formatting option for this, too. The code can be formatted with “```” at the beginning and end. You can also use code sections directly in the text.

A “>” at the start of the line will change the text into a quote.

Ordered and unordered lists can also be used in combination in the readme.md. Simply continue the numbered list with the corresponding number.

We have integrated italic and bold words and passages for illustrative purposes. You can create italic text by placing the respective word or passage between a simple asterisk “*” or underscore “_”. For bold formatting, enter doubled asterisks or underscores.

Tables can also be inserted into the readme.md using the markdown format. You can create tables using pipes “ ” and hyphens “-”. The colons indicate whether the text should be left, right or center-aligned.

Readme example template

Below you will find a summary of examples from the article as a readme template:

Use the WYSIWYG editor from Dillinger to create a readme.md online quickly and easily.

Related articles

You can write content in regular Markdown files (e.g., files ending in .md).Jupyter Book supports any Markdown syntax that is supported by Jupyter notebooks.Jupyter Notebook Markdown is an extension of a flavour of Markdown calledCommonMark Markdown.It has many elements for standard text processing, though it lacks a lot of features used forpublishing and documentation.

Note

If you’d like a more in-depth overview and guide to CommonMark Markdown, seethe CommonMark Markdown tutorial.

This page describes some basic features of the Jupyter Notebook Markdown, and how toinclude them with your book.

Embedding media¶

Adding images¶

File

You can reference external media like images from your Markdown file. If you userelative paths, then they will continue to work when the Markdown files are copied over,so long as they point to a file that’s inside of the repository.

Here’s an image relative to the book content root

It was generated with this code:

See also

Images and figures for more information.

Adding movies¶

You can even embed references to movies on the web! For example, here’s a little GIF for you!

This will be included in your book when it is built.

Mathematics¶

For HTML outputs, Jupyter Book uses the excellent MathJax library,along with the default Jupyter Notebook configuration, for rendering mathematics from LaTeX-style syntax.

For example, here’s a mathematical expression rendered with MathJax:

[begin{split}P(A_1 cup A_2 cup A_3)& = P(B cup A_3) & = P(B) + P(A_3) - P(BA_3) &= P(A_1) + P(A_2) - P(A_1A_2) + P(A_3) - P(A_1A_3 cup A_2A_3) &= sum_{i=1}^3 P(A_i) - mathop{sum sum}_{1 le i < j le 3} P(A_iA_j) + P(A_1A_2A_3)end{split}]

Block-level mathematics¶

You can include block-level mathematics by wrapping your formulas in $$ characters.For example, the following block:

Results in this output:

[wow = its^{math}]

You can also include math blocks by using LaTeX-style syntax using begin{align*}.For example, the following block:

Results in:

[begin{align*}yep = its_{more}^{math}end{align*}]

Markdown Sample Files

Important

This requires the amsmath MyST extension to be enabled.

Extended Markdown with MyST Markdown¶

Markdown File Structure Example

Simpsons hit and run gamecube iso. In addition to CommonMark Markdown, Jupyter Book also supports a more fully-featured version of Markdown called MyST Markdown.This is a superset of CommonMark that includes syntactic pieces that are useful for publishing computational narratives.For more information about MyST Markdown, see MyST Markdown overview.