update documentation

Documentation.md

@@ -10,6 +10,7 @@
   - [Global configuration](#global-configuration)
   - [Link shortener for contacts](#link-shortener-for-contacts)
 - [Add content](#add-content)
+  - [Index](#index)
   - [Blog](#blog)
   - [Projects](#projects)
   - [Contacts](#contacts)
@@ -138,9 +139,27 @@ option: value
 Markdown file
 ```
 
+## Index
+
+Markdown file is stored in `/app/data/index.md`
+
+```
+---
+name: Option<String>
+pronouns: Option<String>
+avatar: Option<String>
+avatar_caption: Option<String>
+---
+
+Index content
+```
+
+- If no `name`, the `fullname` used in the configuration will be used
+- `avatar` is the link of the avatar
+
 ## Blog
 
-Markdown files are stored in `/app/data/blog/`
+Markdown files are stored in `/app/data/blog/posts/`
 
 ```
 ---
@@ -157,11 +176,15 @@ Post content
 - If no `title`, the filename will be used
 - `date` format is `day-month-year`
 - `publish` is default to false. When false, posts are hidden from index
-  but accessible, see #30
+  but accessible, see [#30](https://git.mylloon.fr/Anri/mylloon.fr/issues/30)
+
+### About <!-- omit in toc -->
+
+The file is stored at `/app/data/blog/about.md`.
 
 ## Projects
 
-Markdown files are stored in `/app/data/projects/`
+Markdown files are stored in `/app/data/projects/apps/`
 
 ```
 ---
@@ -176,7 +199,14 @@ Project description
 
 - If no `link` : the div won't be clickable and will be reported as is to the user
   (no corner-arrow)
-- Note that only a handful of [`language`s are supported](./static/css/languages.css).
+- Note that only a handful of [`language`s are supported](./static/css/languages.css)
+
+You can also put apps in an "Archived" category, in this case, store markdown
+files in `archive` subdirectory of `apps`.
+
+### About <!-- omit in toc -->
+
+The file is stored at `/app/data/projects/about.md`.
 
 ## Contacts
 
@@ -204,3 +234,15 @@ Custom project description
 - `user` is the username used in the platform
 - `description` will be rendered as HTML "title" (text will appear when cursor
   is hover the link)
+
+Also, contacts are categorized, here is the list of the available categories:
+
+- `socials`
+- `forges`
+- `others`
+
+For example, `socials` contact files are stored in `/app/data/contacts/socials/`.
+
+### About <!-- omit in toc -->
+
+The file is stored at `/app/data/contacts/about.md`.