Better installation instructions

README.md

@@ -14,9 +14,11 @@ The `files` field in `package.json` is used to ensure that only the built code i
 
 ## Installation
 
-Follow instructions at https://github.com/reactstrap/reactstrap for its installation, but do not add the Bootstrap package. Instead, simply add this package using e.g.
+Follow instructions at https://github.com/reactstrap/reactstrap for its installation, but do add this package in place of the standard Bootstrap package.
 
-    yarn add git+ssh://git@gscgit:utils/gsc-bootstrap.git
+In one line:
+
+    yarn add git+https://git.gsc.org.uk/utils/gsc-bootstrap.git reactstrap
 
 ## Usage