Add link to Sublime syntax highlighting.

doc/otherlang.md

@@ -36,6 +36,8 @@ These are other misc projects related to Cap'n Proto that are not actually imple
 new languages.
 
 * [Common Test Framework](https://github.com/kaos/capnp_test) by [@kaos](https://github.com/kaos)
+* [Sublime Syntax Highlighting](https://github.com/joshuawarner32/capnproto-sublime) by
+  [@joshuawarner32](https://github.com/joshuawarner32)
 * [Vim Syntax Highlighting](https://github.com/cstrahan/vim-capnp) by
   [@cstrahan](https://github.com/cstrahan)
 * [Wireshark Dissector Plugin](https://github.com/kaos/wireshark-plugins) by [@kaos](https://github.com/kaos)