Revert "fix ci and remove comments"

This reverts commit 32cb0db.

Author: nkrkv

test/highlight/embedded.res

@@ -1,9 +1,18 @@
+// NOT AN AUTOMATED TEST.
+//
+// Looks like Tree-sitter test framework does not allow to test
+// for correct language embedding. So, this file is just a showcase
+// to observe results with eyes.
+//
+// You should see comprehensive highlighting for constructs inside
+// strings. That is, they should not look like plain strings if
+// you have corresponding grammar installed.
+
+// :TSInstall javascript
 let inc = %raw(`function(x) {return x + 1;}`)
-//          ^ keyword
-//             ^ string
 
+// :TSInstall graphql
 let gql = %graphql(`{ hero { name } }`)
-//                 ^ string
 
+// :TSInstall regex
 let re = %re(`^[A-Z][a-z0-9]*$`)
-//           ^ string