add initial list of tools used in frontend

Author: johnduffell

docs/libraries.md

@@ -0,0 +1,18 @@
+# Libraries we use
+If you are developing something and haven't got a clue where to start, some of this might be good pointers.
+## front end
+Qwery - find stuff in the DOM
+https://github.com/ded/qwery
+
+Bonzo - a thing for modifying the DOM
+https://github.com/ded/bonzo
+
+Bean - an events library for components
+https://github.com/fat/bean
+
+Reqwest - an Ajax library
+https://github.com/ded/reqwest
+
+## back end
+Play - the application server
+https://playframework.com/