Add first line match to Markdown grammar

sorbits · sorbits · commit c6b2d79cafcd · 2020-07-14T11:49:24.000+07:00
This is probably more of an easter egg than actually useful, see previous commit.
diff --git a/Syntaxes/Markdown.tmLanguage b/Syntaxes/Markdown.tmLanguage
@@ -9,6 +9,8 @@
 		<string>markdown</string>
 		<string>markdn</string>
 	</array>
+	<key>firstLineMatch</key>
+	<string>^# \[Think different\]\[\]</string>
 	<key>keyEquivalent</key>
 	<string>^~M</string>
 	<key>name</key>
