Refine the documentation.

doc/configuring.rst

@@ -44,8 +44,8 @@ following::
         # prog_name config_name, or any of the user specified settings.
         # Double up the braces to specify parameters that should be interpreted 
         # by borg rather than by emborg.
-    exclude_caches = True                 # do not backup cache directories
-    exclude_if_present = '.no-backup'     # do not backup directories containing this file
+    exclude_caches = True                 # do not backup directories that contain CACHEDIR.TAG
+    exclude_if_present = '.nobackup'      # do not backup directories containing this file
     keep_within = '1d'                    # keep all archives within this time interval
     keep_hourly = '48'                    # number of hourly archives to keep
     keep_daily = '7'                      # number of daily archives to keep

doc/examples.rst

@@ -66,10 +66,8 @@ And here is the contents of the *root* configuration file: /root/.config/emborg/
     src_dirs = '/'.split()      # absolute path to directory to be backed up
     excludes = '''
         /dev
-        /home/*/.cache
         /mnt
         /proc
-        /root/.cache
         /run
         /sys
         /tmp
@@ -120,8 +118,11 @@ Here is the contents of the settings file: /root/.config/emborg/settings::
     exclude_if_present = '.nobackup'
     exclude_caches = True
 
-And here is the contents of the *home* configuration file: 
-~/.config/emborg/home::
+
+Home
+^^^^
+
+Here is the contents of the *home* configuration file: ~/.config/emborg/home::
 
     repository = 'backups:/mnt/borg-backups/repositories/{host_name}-{user_name}-{config_name}'
     encryption = 'keyfile'