Updated some regexes for markdown coloring

config/md.conf

@@ -1,7 +1,13 @@
 # Priority decreases going downward ie. If two regexes match the same piece of
 # text, the one defined earlier will take precedence over the one defined later.
 # Headings
-'##?#?#?#?#?.*': MAGENTA
+'^#{1,6}.*?$': MAGENTA
+
+# Link text
+'\[.*?\](?=\(.*?\))': UNDERLINE_WHITE
+
+# Link URL
+'https?://\w+\.\w+.*?(?=\))': RED
 
 # Code blocks
 '```(.|\n)+?```': YELLOW