diff --git a/book/installation-and-setup/user_types.md b/book/installation-and-setup/user_types.md
index df278be..b1e026d 100644
--- a/book/installation-and-setup/user_types.md
+++ b/book/installation-and-setup/user_types.md
@@ -6,7 +6,7 @@ Different types of users will interact with the website or the Jupyter Books dif
     <img src="figures/type 1.jpg" alt="Example Image" align="right" width="130" style="margin: 20px;"><br>There are multiple tools of providing feedback in the built book:<br>a) using the issue button in the top-right corner to directly create issues visible to the editor team.<br>b) Using the [hypothesis](https://jupyterbook.org/en/stable/interactive/comments/hypothesis.html)-extension which allows public/private highlighting and annotating parts of the book. An example can be seen on the [MUDE website](https://mude.citg.tudelft.nl/book/intro.html).<br>c) Using the [Utterances](https://jupyterbook.org/en/stable/interactive/comments/utterances.html)-extension which allows commenting on pages for books which are hosted on GitHub visible for everyone. Those comments are converted to issues on GitHub for the editors to handle.
 
 2. **Colleague providing feedback on the draft website**. <br>
-    In a similar manner as students, colleages and team members can leave content related comments on the website through extensions. In this way, multiple teachers can give input in the draft of the textbook and course material without requiring and exact understanding of Jupyter Books or GitLab/GitHub. The responsible teacher (or student assistants) can then make the adaptations to the book as recommended by their colleagues.
+    In a similar manner as students, colleages and team members can leave content-related comments on the website through extensions. In this way, multiple teachers can give input in the draft of the textbook and course material without requiring and exact understanding of Jupyter Books or GitLab/GitHub. The responsible teacher (or student assistants) can then make the adaptations to the book as recommended by their colleagues.
 
 3. **Colleague making adjustments to single files in GitLab/GitHub using single text editor**. <br>
     This type of user requires only very basic knowledge in GitLab/GitHub in order to make changes to the website themselves without needing to install any software! Making adjustments using single text editor only requires the user to be able to login into GitLab/GitHub and edit .md or .ipynb files. The changes can be done directly in the main or publish branch and if a new branch is needed for the changes then the set-up and merging can be taken care of by someone more familiar in GitLab/GitHub.