Update README instructions for building docs.

ewencp · ewencp · commit b1c85629eca8 · 2016-05-12T11:40:29.000-07:00
diff --git a/README.md b/README.md
@@ -39,6 +39,7 @@ Run integration tests
 
 Generate documentation
 ======================
+Install sphinx and sphinx_rtd_theme packages and then:
 
     make docs
 
