Merge pull request #303 from shtaft/patch-2

Update README.md
diff --git a/README.md b/README.md
index ef52571..d2ebc3a 100644
--- a/README.md
+++ b/README.md
@@ -689,8 +689,8 @@
 ``` js
 "updates": {
   "in-place" : "function(doc, req) {
-      var field = req.form.field;
-      var value = req.form.value;
+      var field = req.body.field;
+      var value = req.body.value;
       var message = 'set '+field+' to '+value;
       doc[field] = value;
       return [doc, message];