updated README

README.rst

@@ -33,6 +33,19 @@ This tool takes the server side definition, creates the client side
 encoding of it, and spits that url out on the command line. You can
 then load it in your browser and off you go.
 
+Usage
+=====
+
+It's super easy, just check out the code, and pass it 1 arg, which is
+the dash file you want the url for:
+
+> ./gerrit-dash-creator dashboards/devstack.dash
+
+URL for Devstack Review Inbox
+https://review.openstack.org/#/dashboard/?foreach=%28project%3Aopenstack-dev%2Fdevstack+OR+project%3Aopenstack-dev%2Fdevstack-vagrant+OR+project%3Aopenstack-dev%2Fbash8+OR+project%3Aopenstack-dev%2Fgrenade%29+status%3Aopen+NOT+owner%3Aself+NOT+label%3AWorkflow%3C%3D-1+label%3AVerified%3E%3D1%2Cjenkins+NOT+label%3ACode-Review%3E%3D0%2Cself&title=Devstack+Review+Inbox&Needs+Feedback+%28Changes+older+than+5+days+that+have+not+been+reviewed+by+anyone%29=NOT+label%3ACode-Review%3C%3D2+age%3A5d&Your+are+a+reviewer%2C+but+haven%27t+voted+in+the+current+revision=NOT+label%3ACode-Review%3C%3D2%2Cself+reviewer%3Aself&Needs+final+%2B2=label%3ACode-Review%3E%3D2+limit%3A50&Passed+Jenkins%2C+No+Negative+Feedback=NOT+label%3ACode-Review%3E%3D2+NOT+label%3ACode-Review%3C%3D-1+limit%3A50&Wayward+Changes+%28Changes+with+no+code+review+in+the+last+2days%29=NOT+label%3ACode-Review%3C%3D2+age%3A2d
+
+Then put the url in your browser and off you go.
+
 Contributions Welcomed
 ======================
 
@@ -40,3 +53,6 @@ If you have a dashboard definition that your OpenStack team finds
 useful, please just send a PR. Very happy to include many many
 interesting examples in this repository for instances that people can
 find and use.
+
+If you have questions please find me on #openstack-dev,
+#openstack-infra, or #openstack-qa on FreeNode to discuss.