Improve docs

README.md

@@ -111,7 +111,7 @@ Result will appear in `dist` directory.
 
 ## PayPal Sponsors
 
-<a href="https://edubirdie.com/write-my-essay" target="_blank"><img height="64" src="https://bootstrap-table.com/assets/images/edu-birdie.png"></a>
+<a href="https://edubirdie.com/write-my-essay" target="_blank"><img height="64" src="https://bootstrap-table.com/assets/images/edu-birdie.png" alt="Write my essay services from Edubirdie"></a>
 
 ## OpenCollective Sponsors
 

site/_includes/footer.html

@@ -1,11 +1,11 @@
 <footer class="bd-footer text-muted">
   <div class="container-fluid p-3 p-md-5">
     <ul class="bd-footer-links">
-      <li><a href="{{ site.repo }}">GitHub</a></li>
-      <li><a href="https://twitter.com/{{ site.twitter }}">Twitter</a></li>
-      <li><a href="{{ site.website }}">My website</a></li>
-      <li><a href="{{ site.repos }}">My repos</a></li>
-      <li><a href="http://stackoverflow.com/questions/tagged/bootstrap-table">Questions / Helps</a></li>
+      <li><a href="{{ site.repo }}" target="_blank">GitHub</a></li>
+      <li><a href="https://twitter.com/{{ site.twitter }}" target="_blank">Twitter</a></li>
+      <li><a href="{{ site.website }}" target="_blank">My website</a></li>
+      <li><a href="{{ site.repos }}" target="_blank">My repos</a></li>
+      <li><a href="http://stackoverflow.com/questions/tagged/bootstrap-table" target="_blank">Questions / Helps</a></li>
       <li><a href="mailto:{{ site.email }}">Email</a></li>
     </ul>
     <p>

site/_includes/opencollective.html

@@ -7,7 +7,7 @@
 
     <div>
       <a href="https://edubirdie.com/write-my-essay" target="_blank">
-        <img height="64" src="assets/images/edu-birdie.png">
+        <img height="64" src="assets/images/edu-birdie.png" alt="Write my essay services from Edubirdie">
       </a>
     </div>
   </div>