Fix links to CITG manual and add anaconda

content/first_book/installations/VSCode.md

 # Visual Studio Code
 ```{caution}
-This entire page is directly copied from [here](https://interactivetextbooks.citg.tudelft.nl/manual/installation-and-setup/vscode-setup.html). This needs to be properly resolved **before this page is put online**.
+This page is directly copied from [here](https://interactivetextbooks.citg.tudelft.nl/jupyter-book-manual/installation-and-setup/vscode-setup.html). It is written by Caspar Jungbacker for the Faculty of Civil Engineering and Geosciences at TU Delft.
 ```
 
 VS Code is a text editor with some extra features, such as integrated source control and a file browser. Moreover, extensions are available to add functionality to VS Code.

content/first_book/installations/conda.md

 # Conda (or another instance of python)
 Jupyter Books come in a python package, so naturally you will need to have python installed. This manual uses conda, which can be downloaded from [`Miniconda`](https://docs.conda.io/en/latest/miniconda.html). Feel free to use whichever version of python you may already have on your computer, but beware that there is a known incompatibility with python version 3.8.
+
+```{admonition} Miniconda VS Anaconda
+:class: dropdown
+If you want a better experience while installing more packages, you can download [`Anaconda`](https://www.anaconda.com/) which offers a graphical environment for the handling of the packages.
+```
\ No newline at end of file

content/first_book/installations/git.md

 # Git
 ```{caution}
-This entire page is directly copied from [here](https://interactivetextbooks.citg.tudelft.nl/manual/installation-and-setup/git-setup.html). This needs to be properly resolved **before this page is put online**.
+This page is directly copied from [here](https://interactivetextbooks.citg.tudelft.nl/jupyter-book-manual/installation-and-setup/git-setup.html). It is written by Caspar Jungbacker for the Faculty of Civil Engineering and Geosciences at TU Delft.
 ```
 
 ## Installation