First setup of the blog

First article and about page
Flex theme setup with some corrections and using a PR for ToC

README.md

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+# TFK-Blog
+
+This is the sources for my blog.
+They are generated using Pelican and based on the Flex theme.
+
+## Prerequisites
+
+Python dependencies : 
+ - pelican[Markdown]
+ - typogrify
+ - beautifulsoup4 (Maybe ? Was already pulled for me)
+
+You can install everything by running the following command : 
+`sudo pip3 install pelican[Markdown] typogrify beautifulsoup4`
+
+## Build
+
+To generate the site, you have to setup the pelican project : 
+`pelican-quickstart`
+
+Then, check that the `pelicanconf.py` file has not been changed. If it has, replace it.
+
+You can now generate the site by running `make html` and test it on your local machine, port 8000, by running `make serve`.
+
+## Write 
+
+You can use the script `new_article.sh` to create a new article, fill its metadata and start editing it righ away. Otherwise, they are under `content/articles`
+