Merge pull request #54 from 53ningen/fix/typo

Fix typo: nodejs-prog-model-context.md

Author: mwunderl

doc_source/nodejs-prog-model-context.md

@@ -41,4 +41,4 @@ exports.handler = function(event, context, callback) {
     console.log('AWSrequestID =', context.awsRequestId);
     callback(null, context.functionName);
 };
-```
+```