Feedback exercise added

exercises/feedback/feedback.js

@@ -0,0 +1,15 @@
+var path = require( 'path' ),
+    verify = require( 'adventure-verify' ),
+    tools = require( '../../library/tools' );
+
+exports.problem = tools.mdProblem( {
+    mdSource: path.join( __dirname, 'feedback.md' ),
+    pdfName: 'feedback.pdf'
+} );
+exports.solution = 'Thank you!';
+
+exports.verify = verify( { modeReset: true }, function checker( args, t ) {
+
+    t.end();
+
+} );

exercises/feedback/feedback.md

@@ -0,0 +1,14 @@
+# Improve this adventure!
+
+Thank you for downloading this adventure!
+
+*Did you like it? Did you miss something? Do you have ideas for new adventures? Did you expect something else?*
+
+Feedback about this adventure is very much appreciated. Be it positive or negative, any comment that helps
+improving the exercises is welcome. It also gives me a better understanding of whether it is worth continuing 
+those adventures.
+
+[Please follow this link](https://github.com/Granjow/graphs-with-javascript/issues/1) to share your opinion,
+or feel free to open a new issue.
+
+**Thank you!**

runner.js

@@ -24,5 +24,8 @@ shop.add( 'Reading Problems', function () {
 //shop.add( 'Under Siege', function () {
 //    return require( './exercises/ex4-siege/siege' );
 //} );
+shop.add( 'Improve it!', function () {
+    return require( './exercises/feedback/feedback' );
+} );
 
 shop.execute( process.argv.slice( 2 ) );