Add default access policy

webtool/pages/access-policy.md

@@ -0,0 +1,7 @@
+Note that unfortunately due to limited resources we need to evaluate 
+applications on a case-by-case basis and cannot guarantee access. 
+Applications are processed manually, and may take some time to complete.
+
+Please try to be somewhat specific, we're interested in how people use our 
+tool so we'd be grateful if you could provide some more detail than e.g. 
+just "research" as your stated intent.