chore(docs): missing comma in example cucumber config (#3428)

Author: eddiejaoude

docs/frameworks.md

@@ -78,7 +78,7 @@ exports.config = {
   framework: 'custom',
 
   // path relative to the current config file
-  frameworkPath: require.resolve('protractor-cucumber-framework')
+  frameworkPath: require.resolve('protractor-cucumber-framework'),
 
   // relevant cucumber command line options
   cucumberOpts: {