Add Sourcegraph links

Author: sqs

README.md

@@ -4,4 +4,11 @@ httpfstream
 httpfstream provides HTTP handlers for simultaneous streaming uploads and
 downloads of files, as well as persistence and a standalone server.
 
+* [Documentation on Sourcegraph](https://sourcegraph.com/github.com/sourcegraph/httpfstream)
+
 [![Build Status](https://travis-ci.org/sourcegraph/httpfstream.png?branch=master)](https://travis-ci.org/sourcegraph/httpfstream)
+[![xrefs](https://sourcegraph.com/api/repos/github.com/sourcegraph/httpfstream/badges/xrefs.png)](https://sourcegraph.com/github.com/sourcegraph/httpfstream)
+[![funcs](https://sourcegraph.com/api/repos/github.com/sourcegraph/httpfstream/badges/funcs.png)](https://sourcegraph.com/github.com/sourcegraph/httpfstream)
+[![top func](https://sourcegraph.com/api/repos/github.com/sourcegraph/httpfstream/badges/top-func.png)](https://sourcegraph.com/github.com/sourcegraph/httpfstream)
+[![library users](https://sourcegraph.com/api/repos/github.com/sourcegraph/httpfstream/badges/library-users.png)](https://sourcegraph.com/github.com/sourcegraph/httpfstream)
+[![status](https://sourcegraph.com/api/repos/github.com/sourcegraph/httpfstream/badges/status.png)](https://sourcegraph.com/github.com/sourcegraph/httpfstream)