update readme

readme.md

@@ -32,3 +32,31 @@ append the key to the current selector, and recurse; else generate css.
 if you want inline logic, wrap it up in a function which returns an object.
 
 keys that would confuse the real compiler, coffee-script, must be quoted.
+
+to reduce the amount of quoting, if a css property has a capital letter C,
+it will be transformed into -c; selectors are not touched.
+
+eg, instead of
+
+    borderRadius = (arg) ->
+      '-webkit-border-radius': arg
+      '-moz-border-radius':    arg
+      'border-radius':         arg
+
+we can write
+
+    borderRadius = (arg) ->
+      WebkitBorderRadius: arg
+      MozBorderRadius:    arg
+      borderRadius:       arg
+
+    '#id .className':
+      borderRadius 5
+
+compiled:
+
+    #id .className {
+      -webkit-border-radius: 5;
+      -moz-border-radius: 5;
+      border-radius: 5;
+    }