Update

syntax/modules/sticky.vim

@@ -0,0 +1,8 @@
+if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'nginx') == -1
+  
+" Sticky Module <https://bitbucket.org/nginx-goodies/nginx-sticky-module-ng>
+" Add a sticky cookie to be always forwarded to the same upstream server
+syn keyword ngxDirectiveThirdParty sticky 
+
+
+endif