Add documentation for insensitive includes & excludes

doc/040_backup.rst

@@ -139,6 +139,7 @@ You can exclude folders and files by specifying exclude patterns, currently
 the exclude options are:
 
 -  ``--exclude`` Specified one or more times to exclude one or more items
+-  ``--iexclude`` Same as ``--exclude`` but ignores the case of paths
 -  ``--exclude-caches`` Specified once to exclude folders containing a special file
 -  ``--exclude-file`` Specified one or more times to exclude items listed in a given file
 -  ``--exclude-if-present`` Specified one or more times to exclude a folders content

doc/050_restore.rst

@@ -52,6 +52,10 @@ You can use the command ``restic ls latest`` or ``restic find foo`` to find the
 path to the file within the snapshot. This path you can then pass to
 `--include` in verbatim to only restore the single file or directory.
 
+There are case insensitive variants of of ``--exclude`` and ``--include`` called
+``--iexclude`` and ``--iinclude``. These options will behave the same way but
+ignore the casing of paths.
+
 Restore using mount
 ===================