docs: shorten files /usr/ docs

config/recipe.yml

@@ -12,10 +12,9 @@ image-version: 39 # latest is also supported if you want new updates ASAP
 modules:
   - type: files
     files:
-      - usr: /usr # copies config/files/usr into your image's /usr
-                  # configuration you wish to end up in /etc/ on the booted system
-                  # should be added into /usr/etc/ as that is the proper "distro"
-                  # config directory on ostree. Read more in the files module's documentation
+      - usr: /usr # copies config/files/usr into your image's /usr.
+                  # put configuration files you want in /etc/ on a booted system 
+                  # in /usr/etc/ in the image. read more in files module reference.
 
   - type: rpm-ostree
     repos: