How to add +1 button near the title of all posts?

1. Find the third and fourth code given in the step 2 of the article : How to create [Return to top] links on all post?
2. For more guidelines, read its step 3 also.
3. After each code found in step 1, paste <g:plusone size='small'/>  
4. Note :- Paste the above code only after the third and fourth code of step 2 of the respective article mentioned above.
5. Press Ctrl + F and find </head>
6. Paste the following code just above </head>
   

   <script src='https://apis.google.com/js/plusone.js' type='text/javascript'/>

7. Save Template.