Update README.md

Author: heshanlk

README.md

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 # Micropublisher for Drupal
 
 Allows users to easily attach various kinds of content (links, photos, videos, etc) in a single content field so you can create a stream like on Facebook
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+### Currently supported: 
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+* Bliptv
+* Flickr
+* Hulu
+* Link
+* Image upload
+* Metacafe
+* Slideshare
+* Twitpic
+* Twitter
+* Viddler
+* Vimeo
+* Wikipedia
+* Yfrog
+* Youtube