Correct index helptext to say index instead of mash.

timesearch_modules/__init__.py

@@ -186,37 +186,37 @@ index:
         Write HTML files instead of plain text.
 
     --offline:
-        The links in the mash will point to the files generated by
+        The links in the index will point to the files generated by
         offline_reading. That is, `../offline_reading/fullname.html` instead
         of `http://redd.it/id`. This will NOT trigger offline_reading to
         generate the files now, so you must run that tool separately.
 
     -st 50 | --score_threshold 50:
-        Only mash posts with at least this many points.
+        Only index posts with at least this many points.
-        Applies to ALL mashes!
+        Applies to ALL indexes!
 
     --all:
-        Perform all of the mashes listed below.
+        Perform all of the indexes listed below.
 
     --date:
-        Perform a mash sorted by date.
+        Perform a index sorted by date.
 
     --title:
-        Perform a mash sorted by title.
+        Perform a index sorted by title.
 
     --score:
-        Perform a mash sorted by score.
+        Perform a index sorted by score.
 
     --author:
         For subreddit databases only.
-        Perform a mash sorted by author.
+        Perform a index sorted by author.
 
     --sub:
         For username databases only.
-        Perform a mash sorted by subreddit.
+        Perform a index sorted by subreddit.
 
     --flair:
-        Perform a mash sorted by flair.
+        Perform a index sorted by flair.
 
     examples:
         `timesearch index -r botwatch --date`