message: Fix math highlighting in doctex
  Related to PR
diff: <string>support.class.math.latex</string>
  <key>patterns</key>
  <array>
  + <dict>
  + <key>include</key>
  + <string>text.tex#math</string>
  + </dict>
  <dict>
  <key>include</key>
  <string>$base</string>
  <string>support.class.math.latex</string>
  <key>patterns</key>
  <array>
  + <dict>
  + <key>include</key>
  + <string>text.tex#math</string>
  + </dict>
  <dict>
  <key>include</key>
  <string>$base</string>
  