docs(*): improve accessibility of links

Closes #7932

Author: Narretz

docs/app/src/tutorials.js

@@ -43,7 +43,7 @@ angular.module('tutorials', [])
           '<a href="http://angular.github.io/angular-phonecat/step-{{step}}/app">Step {{step}} Live Demo</a>.</p>\n' +
       '</div>\n' +
       '<p>The most important changes are listed below. You can see the full diff on ' +
-        '<a ng-href="https://github.com/angular/angular-phonecat/compare/step-{{step ? (step - 1): \'0~1\'}}...step-{{step}}">GitHub</a>\n' +
+        '<a ng-href="https://github.com/angular/angular-phonecat/compare/step-{{step ? (step - 1): \'0~1\'}}...step-{{step}}" title="See diff on Github">GitHub</a>\n' +
       '</p>'
   };
 });

docs/config/templates/indexPage.template.html

@@ -76,7 +76,7 @@
           <div class="row">
             <div class="col-md-9 header-branding">
               <a class="brand navbar-brand" href="http://angularjs.org">
-                <img width="117" height="30" class="logo" ng-src="img/angularjs-for-header-only.svg">
+                <img width="117" height="30" class="logo" alt="Link to Angular JS Homepage" ng-src="img/angularjs-for-header-only.svg">
               </a>
               <ul class="nav navbar-nav">
                 <li class="divider-vertical"></li>
@@ -223,7 +223,7 @@ <h4 class="search-results-group-heading">{{ key }}</h4>
           Super-powered by Google  ©2010-2015
           ( <a id="version"
                ng-href="https://github.com/angular/angular.js/blob/master/CHANGELOG.md#{{versionNumber}}"
-               ng-bind-template="v{{version}}">
+               ng-bind-template="v{{version}}" title="Changelog of this version of Angular JS">
             </a>
           )
         </p>

docs/content/misc/faq.ngdoc

@@ -194,7 +194,7 @@ Conditionally showing and hiding things using jQuery is a common pattern in othe
 `ng-show` (and `ng-hide`) conditionally show and hide elements based on boolean expressions.
 Describe the conditions for showing and hiding an element in terms of `$scope` variables:
 
-    <div ng-show="!loggedIn">Click <a href="#/login">here</a> to log in</div>
+    <div ng-show="!loggedIn"><a href="#/login">Click here to log in</a></div>
 
 Note also the counterpart `ng-hide` and similar `ng-disabled`.
 Note especially the powerful `ng-switch` that should be used instead of several mutually exclusive `ng-show`s.

docs/content/tutorial/step_00.ngdoc

@@ -31,7 +31,7 @@ npm install
 
 To see the app running in a browser, open a *separate* terminal/command line tab or window, then
 run `npm start` to start the web server. Now, open a browser window for the app and navigate to
-<a href="http://localhost:8000/app/" target="_blank">`http://localhost:8000/app/`</a>
+<a href="http://localhost:8000/app/" target="_blank" title="Open app on localhost">`http://localhost:8000/app/`</a>
 
 Note that if you already ran the master branch app prior to checking out step-0, you may see the cached
 master version of the app in your browser window at this point. Just hit refresh to re-load the page.