add dsconf help to README

README.rst

@@ -4,9 +4,35 @@ devstack-tools
 
 Devstack Helper Tools in Python
 
-Please fill here a long description which must be at least 3 lines wrapped on
-80 cols, so that distribution package maintainers can use it in their packages.
-Note that this is a hard requirement.
+This is a set of cli tools for supporting devstack. It moves some of
+the complexity out of bash and into python where it's easier to have
+comprehensive testing of behavior.
+
+Currently this includes the ``dsconf`` tool, which provides a cli for
+manipulating local.conf and ini files.
+
+::
+
+  usage: dsconf [-h]
+              {iniset,inicomment,iniuncomment,inirm,extract-localrc,extract,setlc,setlc_conf,merge_lc}
+              ...
+
+  optional arguments:
+    -h, --help            show this help message and exit
+
+  commands:
+    {iniset,inicomment,iniuncomment,inirm,extract-localrc,extract,setlc,setlc_conf,merge_lc}
+                        sub-command help
+    iniset              set item in ini file
+    inicomment          comment item in ini file
+    iniuncomment        uncomment item in ini file
+    inirm               delete item from ini file
+    extract-localrc     extract localrc from local.conf
+    extract             extract and merge config from local.conf
+    setlc               set variable in localrc of local.conf
+    setlc_conf          set variable in localrc of local.conf
+    merge_lc            merge local.conf files
+
 
 * Free software: Apache license
 * Documentation: http://docs.openstack.org/developer/devstack-tools