docs: update documentation with the list of nox commands available

README.md

@@ -43,25 +43,45 @@ Date used for the news is the date the file was created in git.
 
 ### HTML generation
 
-We use https://git.frog-collective.com/collectivit/jean-web to generate the
+We use <https://git.frog-collective.com/collectivit/jean-web> to generate the
 website. Jinja2 templates are stored in the src directory, and use the content
 loaded from the 'content' folder to generate static pages. Content can be
 markdown document with metadata, or json files.
 
 ### CSS
+
 We use the BEM naming convention with the scheme
 
 ```css
 .block--element__modifier
 ```
 
-See https://getbem.com/naming/ for insigths on the BEM naming convention.
+See <https://getbem.com/naming/> for insigths on the BEM naming convention.
 
-We use SASS as a CSS extension language (https://sass-lang.com/).
+We use SASS as a CSS extension language (<https://sass-lang.com/>).
 
 ### Dev env
 
 Install the following dependencies to be able to test the website locally:
+
 ```sh
 npm install -g browser-sync
 ```
+
+Then it's possible to start a local server using the command:
+
+```sh
+browser-sync start --server build/ --watch
+```
+
+To extract localization messages:
+
+```sh
+nox -s extract_messages
+```
+
+Then to compile them once localization is done:
+
+```sh
+nox -s compile_messages
+```