How/where to import Angular and Bootstrap .js files in my index.html?

<p>I'm new to web front-end programming and am teaching myself AngularJS.</p><p>I have created a very simple webapp that just lets users login and logout. I am running it locally on my Mac OSX.</p><p>Below is my <code>index.html</code> file. Although it works, I'm not sure if I'm doing it right. I need to know how and where to import the angular.js files and the bootstrap.js files.</p><p>My questions are as follows. I haven't been able to figure this stuff out by googling. I need someone to explain this stuff to me please.</p><ol><li>I'm currently importing the <code>angular.js</code> file from <code>http://ift.tt/Q55qZD</code>. Is that correct? Or should I download it and store that file in the same directory as <code>index.html</code>? Why? When should I use the non-minified file? What is the benefit of using non-minified?</li><li>I'm currently not importing any bootstrap file(s). Which file(s) should I import? Should I import it/them as a URL or as a file from the same directory as <code>index.html</code></li><li>For both Bootstrap and AngularJS, please tell me which line numbers I should put the <code>script src</code> lines in my HTML.</li><li>Should I check the Angular and Bootstrap files into my Github repository?</li></ol><p>index.html:</p><pre><br /><code> 1 <html ng-app="app"><br /> 2 <head><br /> 3 </head><br /> 4 <body ng-controller="Main as main"><br /> 5 <input type="text" ng-model="main.username" placeholder="username"><br><br /> 6 <input type="password" ng-model="main.password" placeholder="password"><br><br /> 7 <br><br /> 8 <button ng-click="main.login()" ng-hide="main.isAuthed()">Login</button><br /> 9 <button ng-click="main.logout()" ng-show="main.isAuthed()">Logout</button><br />10 <br/><br />11 {{main.message}}<br />12 <script src="http://ift.tt/1VpgoFJ"></script><br />13 <script src="app.js"></script><br />14 </body><br />15 </html><br /></code><br /></pre><br /><h2>Click here view more answers <a href="%20http://stackoverflow.com/questions/34525650/how-where-to-import-angular-and-bootstrap-js-files-in-my-index-html">http://ift.tt/1NQ8lyK</a></h2>