Specify `img` alternative text.

docs/_includes/getting-started/examples.html

@@ -7,14 +7,14 @@
   <div class="row bs-examples">
     <div class="col-xs-6 col-md-4">
       <a class="thumbnail" href="../examples/starter-template/">
-        <img src="../examples/screenshots/starter-template.jpg" alt="">
+        <img src="../examples/screenshots/starter-template.jpg" alt="Starter template example">
       </a>
       <h4>Starter template</h4>
       <p>Nothing but the basics: compiled CSS and JavaScript along with a container.</p>
     </div>
     <div class="col-xs-6 col-md-4">
       <a class="thumbnail" href="../examples/theme/">
-        <img src="../examples/screenshots/theme.jpg" alt="">
+        <img src="../examples/screenshots/theme.jpg" alt="Bootstrap theme example">
       </a>
       <h4>Bootstrap theme</h4>
       <p>Load the optional Bootstrap theme for a visually enhanced experience.</p>
@@ -23,14 +23,14 @@
 
     <div class="col-xs-6 col-md-4">
       <a class="thumbnail" href="../examples/grid/">
-        <img src="../examples/screenshots/grid.jpg" alt="">
+        <img src="../examples/screenshots/grid.jpg" alt="Multiple grids example">
       </a>
       <h4>Grids</h4>
       <p>Multiple examples of grid layouts with all four tiers, nesting, and more.</p>
     </div>
     <div class="col-xs-6 col-md-4">
       <a class="thumbnail" href="../examples/jumbotron/">
-        <img src="../examples/screenshots/jumbotron.jpg" alt="">
+        <img src="../examples/screenshots/jumbotron.jpg" alt="Jumbotron example">
       </a>
       <h4>Jumbotron</h4>
       <p>Build around the jumbotron with a navbar and some basic grid columns.</p>
@@ -39,7 +39,7 @@
 
     <div class="col-xs-6 col-md-4">
       <a class="thumbnail" href="../examples/jumbotron-narrow/">
-        <img src="../examples/screenshots/jumbotron-narrow.jpg" alt="">
+        <img src="../examples/screenshots/jumbotron-narrow.jpg" alt="Narrow jumbotron example">
       </a>
       <h4>Narrow jumbotron</h4>
       <p>Build a more custom page by narrowing the default container and jumbotron.</p>
@@ -50,14 +50,14 @@
   <div class="row bs-examples">
     <div class="col-xs-6 col-md-4">
       <a class="thumbnail" href="../examples/navbar/">
-        <img src="../examples/screenshots/navbar.jpg" alt="">
+        <img src="../examples/screenshots/navbar.jpg" alt="Navbar example">
       </a>
       <h4>Navbar</h4>
       <p>Super basic template that includes the navbar along with some additional content.</p>
     </div>
     <div class="col-xs-6 col-md-4">
       <a class="thumbnail" href="../examples/navbar-static-top/">
-        <img src="../examples/screenshots/navbar-static.jpg" alt="">
+        <img src="../examples/screenshots/navbar-static.jpg" alt="Static top navbar example">
       </a>
       <h4>Static top navbar</h4>
       <p>Super basic template with a static top navbar along with some additional content.</p>
@@ -66,7 +66,7 @@
 
     <div class="col-xs-6 col-md-4">
       <a class="thumbnail" href="../examples/navbar-fixed-top/">
-        <img src="../examples/screenshots/navbar-fixed.jpg" alt="">
+        <img src="../examples/screenshots/navbar-fixed.jpg" alt="Fixed navbar example">
       </a>
       <h4>Fixed navbar</h4>
       <p>Super basic template with a fixed top navbar along with some additional content.</p>
@@ -77,14 +77,14 @@
   <div class="row bs-examples">
     <div class="col-xs-6 col-md-4">
       <a class="thumbnail" href="../examples/cover/">
-        <img src="../examples/screenshots/cover.jpg" alt="">
+        <img src="../examples/screenshots/cover.jpg" alt="A one-page template example">
       </a>
       <h4>Cover</h4>
       <p>A one-page template for building simple and beautiful home pages.</p>
     </div>
     <div class="col-xs-6 col-md-4">
       <a class="thumbnail" href="../examples/carousel/">
-        <img src="../examples/screenshots/carousel.jpg" alt="">
+        <img src="../examples/screenshots/carousel.jpg" alt="Carousel example">
       </a>
       <h4>Carousel</h4>
       <p>Customize the navbar and carousel, then add some new components.</p>
@@ -93,14 +93,14 @@
 
     <div class="col-xs-6 col-md-4">
       <a class="thumbnail" href="../examples/blog/">
-        <img src="../examples/screenshots/blog.jpg" alt="">
+        <img src="../examples/screenshots/blog.jpg" alt="Blog layout example">
       </a>
       <h4>Blog</h4>
       <p>Simple two-column blog layout with custom navigation, header, and type.</p>
     </div>
     <div class="col-xs-6 col-md-4">
       <a class="thumbnail" href="../examples/dashboard/">
-        <img src="../examples/screenshots/dashboard.jpg" alt="">
+        <img src="../examples/screenshots/dashboard.jpg" alt="Dashboard example">
       </a>
       <h4>Dashboard</h4>
       <p>Basic structure for an admin dashboard with fixed sidebar and navbar.</p>
@@ -109,14 +109,14 @@
 
     <div class="col-xs-6 col-md-4">
       <a class="thumbnail" href="../examples/signin/">
-        <img src="../examples/screenshots/sign-in.jpg" alt="">
+        <img src="../examples/screenshots/sign-in.jpg" alt="Sign-in page example">
       </a>
       <h4>Sign-in page</h4>
       <p>Custom form layout and design for a simple sign in form.</p>
     </div>
     <div class="col-xs-6 col-md-4">
       <a class="thumbnail" href="../examples/justified-nav/">
-        <img src="../examples/screenshots/justified-nav.jpg" alt="">
+        <img src="../examples/screenshots/justified-nav.jpg" alt="Justified nav example">
       </a>
       <h4>Justified nav</h4>
       <p>Create a custom navbar with justified links. Heads up! <a href="../components/#nav-justified">Not too Safari friendly.</a></p>
@@ -125,14 +125,14 @@
 
     <div class="col-xs-6 col-md-4">
       <a class="thumbnail" href="../examples/sticky-footer/">
-        <img src="../examples/screenshots/sticky-footer.jpg" alt="">
+        <img src="../examples/screenshots/sticky-footer.jpg" alt="Sticky footer example">
       </a>
       <h4>Sticky footer</h4>
       <p>Attach a footer to the bottom of the viewport when the content is shorter than it.</p>
     </div>
     <div class="col-xs-6 col-md-4">
       <a class="thumbnail" href="../examples/sticky-footer-navbar/">
-        <img src="../examples/screenshots/sticky-footer-navbar.jpg" alt="">
+        <img src="../examples/screenshots/sticky-footer-navbar.jpg" alt="Sticky footer with navbar example">
       </a>
       <h4>Sticky footer with navbar</h4>
       <p>Attach a footer to the bottom of the viewport with a fixed navbar at the top.</p>
@@ -143,14 +143,14 @@
   <div class="row bs-examples">
     <div class="col-xs-6 col-md-4">
       <a class="thumbnail" href="../examples/non-responsive/">
-        <img src="../examples/screenshots/non-responsive.jpg" alt="">
+        <img src="../examples/screenshots/non-responsive.jpg" alt="Non-responsive example">
       </a>
       <h4>Non-responsive Bootstrap</h4>
       <p>Easily disable the responsiveness of Bootstrap <a href="#disable-responsive">per our docs</a>.</p>
     </div>
     <div class="col-xs-6 col-md-4">
       <a class="thumbnail" href="../examples/offcanvas/">
-        <img src="../examples/screenshots/offcanvas.jpg" alt="">
+        <img src="../examples/screenshots/offcanvas.jpg" alt="Off-canvas navigation example">
       </a>
       <h4>Offcanvas</h4>
       <p>Build a toggleable off-canvas navigation menu for use with Bootstrap.</p>