message: Fix Syntax highlighting in doctex
diff: </dict>
  <dict>
  <key>include</key>
  - <string>$self</string>
  + <string>$base</string>
  </dict>
  </array>
  </dict>
  <array>
  <dict>
  <key>include</key>
  - <string>text.tex.latex</string>
  + <string>$base</string>
  </dict>
  </array>
  </dict>
  