Expanded and reworded paragraph describing info format.

notes.org

@@ -141,11 +141,11 @@ Often called the selection, it's the area of lines between a mark (set by =C-Spa
 your current cursor location (point).
 
 *** info
-This is a help format that's used internally for the help documentation of Emacs. It's written in a
-cut-down version of TeX called texinfo, which is then compiled to create an info document for use
-with the standalone info command or the internal help (=C-h i=). It contains formatting, links and a
-syntax for moving the cursor around between sections that's much like the [[#emacs-movement-keys][Emacs movement keys]]
-section below.
+This is a help format that's used internally for the help documentation of Emacs, as well as for
+system information on UNIX and Unix-like systems. It's written in a cut-down version of TeX called
+texinfo, which is then compiled to create an info document for use with the standalone info command
+or the internal help (=C-h i=). It uses [[#emacs-movement-keys][Emacs movement keys]] to move
+around, and supports various ways to format text. An info document can also contain links to other content, both within the same document, or to other documents in info format.
 
 ** What different keys mean
   :PROPERTIES: