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+# Sphinx Extension: Custom Launch Button 
+
+The custom launch button extension allows you to create a customizable button in the top right of your jupyter book. 
+This may have many applications, one of them being that you can create different language versions of the book available for the user. 
+
+This section will explain how to create a "Languages" button, like you might be used to seeing on just about any website. The use of the button, however, is completey customizable and may be used in many different ways.
+
+## Installation
+
+1. Install the Sphinx Launch Buttons extension from the GitHub repository.
+
+`pip install git+https://github.com/TeachBooks/Sphinx-launch-buttons.git`
+
+2. To use the extension in your book, you need to include it in your `_config.yml` file.
+
+```
+sphinx:
+  extra_extensions:
+    - custom-launch-buttons
+```
+
+3. Then you need to include a `_launch_buttons.yml` file in the same location as your `_config.yml` file. 
+
+```
+buttons:
+  - type : dropdown
+
+  - type : button
+```
+
+Where `buttons` is an array of launch buttons, each can be identified using 2 types: 'dropdown' or 'button'. The cell above shows 2 buttons, one of type `dropdown` and one of type `button`.
+
+The button/dropdown can be visualised using either an [svg icon](https://icons.getbootstrap.com/#icons) or text.
+
+```
+buttons:
+  - type : dropdown
+    label: Language
+  - type : button
+    label : <svg></svg> 
+```
+
+## Setting up your repository
+
+For the implementation to your book, it is handy to create a branch for each language version you want to offer. Make a new branch using for example main as a source. Assuming we want to create a dutch version of you can call this branch `Dutch` or `Nederlands`. 
+
+You will then need to translate the content in the dutch branch to dutch which can take some time. From experience, [DeepL](https://www.deepl.com/en/translator) is a good tool for this but any AI chatbot might be helpful as well. Make sure to proofread the translation.
+
+
+
+##