added readme.rst

readme.rst

@@ -0,0 +1,9 @@
+Karax -- Single page applications in Nim
+========================================
+
+Karax is a prototype for developing single page applications in Nim.
+
+To try it out, run::
+
+  nim js example.nim
+  open example.html

todo.rst

@@ -1,4 +1,6 @@
 - Better virtual dom diff'ing algorithm: find longest common subsequence
 - add CSS changes to todo example.nim
 - handle onscroll events
+- introduce a way to test karax applications
+- introduce a way to do AJAX