use syntax highlighting in README.md

RELNOTES: n/a Closes #899 from theel0ja/closure-library:patch-1 ORIGINAL_AUTHOR=Elias Ojala <ojala.s.elias@gmail.com> ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=198593225
google · Jun 4, 2018 · 170cb7a · 170cb7a
1 parent 9e963e2
commit 170cb7a
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/README.md b/README.md
@@ -20,13 +20,13 @@ See also the
 ## Using with Node.js
 Install the [official package](https://www.npmjs.com/package/google-closure-library) from npm.
 
-```
+```bash
 npm install google-closure-library
 ```
 
 Require the package and use goog.require normally.
 
-```
+```js
 require("google-closure-library");
 
 goog.require("goog.crypt.Sha1");