Update README.md

Add getMp4FullResolution and getJpegFullResolution methods

Author: Louuke

README.md

@@ -178,21 +178,19 @@ client.loadConversation(remoteJid, 25, "4C739872E8K15F7L0ACB", false);
 | getMimetype | Returns mimetype of the image |
 | getCaption | Returns caption |
 | getJpegThumbnail | Returns a thumbnail of the image |
+| getJpegFullResolution | Returns the image with full resolution or null if it could not be loaded |
 | ... | ... |
 
-**Note**: Full resolution images are not implemented
-
 - **WebVideoMessage**: Contains information about video messages
 
 | Method | Description |
 | ------------- |---------------|
 | getMimetype | Returns mimetype of the video |
 | getSeconds | Returns video length |
-| getJpegThumbnail | Returns a thumbnail of the video |
+| getMp4Thumbnail | Returns a thumbnail of the video |
+| getMp4FullResolution | Returns the video with full resolution or null if it could not be loaded |
 | ... | ... |
 
-**Note**: The download of videos is not implemented
-
 - **WebMessage**: Each Web[Type]Message class extends WebMessage and therefore contains the following methods
 
 | Method | Description |
@@ -203,5 +201,7 @@ client.loadConversation(remoteJid, 25, "4C739872E8K15F7L0ACB", false);
 | getMessageTimestamp | Returns the message timestamp |
 | getStatus | Returns the status of the message |
 
+**Note**: Audio and document messages are not implemented
+
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