i18n: extract, translate strings to be translated

- Extracts stings to be translated.
- Translates these strings in English and French.
- Improves some comments in the templates.
- Update the auto-changelog configuration according to the new git
  repository URL.
- Update the CHANGELOG.
- Fixes #18.

Co-Authored-by: iGor milhit <igor@milhit.ch>

README.md

@@ -133,7 +133,7 @@ The Changelog is described in [`CHANGELOG.md`][8]. It's generated by
 To generate it, use the following command:
 
 ```bash
-yarn auto-changelo
+yarn auto-changelog
 ```
 
 [1]: https://git.milhit.ch/igor/portfoligor