Fix broken url and typo

docs/guides/publishing-on-heroku.md

@@ -40,7 +40,7 @@ heroku apps:create [NAME OF YOUR APP] --region eu
 ```
 Replace `[name of your app]` with what you want to call your prototype.
 
-## 5) Set a username and passwordg
+## 5) Set a username and password
 
 By default, prototypes made with the kit require a username and password to be used when deployed on Heroku.
 

lib/utils.js

@@ -21,7 +21,7 @@ exports.basicAuth = function(username, password) {
 
 		if (!username || !password) {
 			console.log('Username or password is not set.');
-			return res.send('<h1>Error:</h1><p>Username or password not set. <a href="https://github.com/alphagov/govuk_prototype_kit/blob/master/docs/deploying.md#3-set-a-username-and-password">See guidance for setting these</a>.</p>');
+			return res.send('<h1>Error:</h1><p>Username or password not set. <a href="https://github.com/alphagov/govuk_prototype_kit/blob/master/docs/guides/publishing-on-heroku.md#5-set-a-username-and-password">See guidance for setting these</a>.</p>');
 		}
 
 		var user = basicAuth(req);