Fix docs: multipart insert requires PUT
see #266
diff --git a/README.md b/README.md
index 37d6c69..4b26937 100644
--- a/README.md
+++ b/README.md
@@ -492,9 +492,9 @@
## multipart functions
-### db.multipart.insert(doc, attachments, [params], [callback])
+### db.multipart.insert(doc, attachments, params, [callback])
-inserts a `doc` together with `attachments` and optional `params`. if params is a string, its assumed as the intended document name. if params is an object, its passed as query string parameters and `doc_name` is checked for defining the document name.
+inserts a `doc` together with `attachments` and `params`. if params is a string, its assumed as the intended document name. if params is an object, its passed as query string parameters and `doc_name` is checked for defining the document name.
refer to the [doc](http://wiki.apache.org/couchdb/HTTP_Document_API#Multiple_Attachments) for more details.
`attachments` must be an array of objects with `name`, `data` and `content_type` properties.
