--- a/fs.rst	Tue Jan 12 19:47:11 2016 +0200
+++ b/fs.rst	Tue Jan 12 21:42:30 2016 +0200
@@ -6,6 +6,13 @@
 ==============
 .. contents::
 
+Supported FS.
+=============
+
+List of supported by current Linux kernel FSes::
+
+  $ cat /proc/filesystems
+
 Make label on FAT32 volume.
 ===========================