fixes

Author: irublev

_config.yml

@@ -32,7 +32,7 @@ disqus:
 github:
   repo: https://github.com/irublev/pgmex-blog
 
-gems:
+plugins:
   - jekyll-feed
   - jekyll-mentions
   - jekyll-sitemap

_posts/2018/2018-08-02-free-academic-licenses-for-pgmex.md

@@ -12,7 +12,7 @@ and colleges)!
 The free academic licenses can be obtained by submitting a form with your full name, an academic institution and a valid
 institution e-mail [here](http://pgmex.alliedtesting.com/#academic-license).
 
-Please note that [**PgMex**](http://pgmex.alliedtesting.com) academic licenses are provided “as-is” and without full
+Please note that [**PgMex**](http://pgmex.alliedtesting.com) academic licenses are provided "as-is" and without full
 support, but with acceptance of bug reports. With your academic license we offer six months of free updates.
 
 For more information visit the **PgMex** website at: [http://pgmex.alliedtesting.com](http://pgmex.alliedtesting.com).