Add the "Gentoo" page.

Author: paveloom

content/notes/Gentoo.md

@@ -0,0 +1,20 @@
++++
+title = "Gentoo"
++++
+
+Gentoo Linux is a Linux distribution built using the Portage package management system.
+
+Links:
+
+- [Official website](https://www.gentoo.org)
+- [Gentoo Development Guide](https://devmanual.gentoo.org)
+- [Gentoo Forums](https://forums.gentoo.org)
+- [Gentoo Packages](https://packages.gentoo.org)
+- [Gentoo Wiki](https://wiki.gentoo.org/wiki/Main_Page)
+- [Gentoo's Bugzilla](https://bugs.gentoo.org)
+- [Wikipedia](https://en.wikipedia.org/wiki/Gentoo_Linux)
+
+Subpages:
+
+- [Filesystem](@/notes/Gentoo_Filesystem.md)
+- [Update workflow](@/notes/Gentoo_Update_workflow.md)

content/notes/Gentoo_Filesystem.md

@@ -31,3 +31,7 @@ On most Gentoo systems, though, some of those paths will be symlinks. For exampl
 ## References
 
 - [Gentoo Development Guide: Filesystem](https://devmanual.gentoo.org/general-concepts/filesystem/index.html)
+
+## See also
+
+- [Gentoo](@/notes/Gentoo.md)

content/notes/Gentoo_Update_workflow.md

@@ -135,3 +135,7 @@ Typical system update procedure:
 3. Synchronize the system repositories with `emerge --sync`.
 
 4. Update the system with `emerge -uND @world`.
+
+## See also
+
+- [Gentoo](@/notes/Gentoo.md)