Added subject line to MMS example

IbrahimTareq · web-flow · commit 5383664a9c12 · 2018-10-28T15:36:42.000+11:00
diff --git a/README.md b/README.md
@@ -117,6 +117,7 @@ body_value = '''{
             "content":"My first message",
             "destination_number":"YOUR_MOBILE_NUMBER",
             "format":"MMS",
+            "subject": "This is an MMS message",
             "media":["https://upload.wikimedia.org/wikipedia/commons/6/6a/L80385-flash-superhero-logo-1544.png"]
         }
     ]

Original file line number	Diff line number	Diff line change
`@@ -117,6 +117,7 @@ body_value = '''{`
`117`	`117`	`"content":"My first message",`
`118`	`118`	`"destination_number":"YOUR_MOBILE_NUMBER",`
`119`	`119`	`"format":"MMS",`
	`120`	`+ "subject": "This is an MMS message",`
`120`	`121`	`"media":["https://upload.wikimedia.org/wikipedia/commons/6/6a/L80385-flash-superhero-logo-1544.png"]`
`121`	`122`	`}`
`122`	`123`	`]`