Add modify and info features.

README.md

@@ -12,10 +12,12 @@ is specified then the `list` command is assumed by default. Here are the list of
 commands:
 
 - `add` or `a`: add a new habit
+- `commit`: commit to having done a habit
+- `delete` or `del`: delete a habit
+- `info` or `i`: get information about a habit
 - `help` or `h`: show help information
 - `list` or `ls`: list the habits available for today
 - `modify` or `mod`: modify the settings for a habit
-- `delete` or `del`: delete a habit
 - `statistics` or `stats`: show statistics on current habits
 
 ## License