adding jekyll-seo-tag plugin

Gemfile

@@ -2,5 +2,6 @@ source "https://rubygems.org"
 
 gem "jekyll", "~> 3.0"
 gem "jekyll-sitemap"
+gem "jekyll-seo-tag"
 gem "jekyll-gist"
 gem "octopress"

Gemfile.lock

@@ -33,6 +33,8 @@ GEM
       octokit (~> 4.2)
     jekyll-sass-converter (1.5.1)
       sass (~> 3.4)
+    jekyll-seo-tag (2.4.0)
+      jekyll (~> 3.3)
     jekyll-sitemap (1.1.1)
       jekyll (~> 3.3)
     jekyll-watch (2.0.0)
@@ -87,6 +89,7 @@ PLATFORMS
 DEPENDENCIES
   jekyll (~> 3.0)
   jekyll-gist
+  jekyll-seo-tag
   jekyll-sitemap
   octopress
 

_config.yml

@@ -56,6 +56,7 @@ sass:
   style: compressed
 plugins:
   - jekyll-sitemap
+  - jekyll-seo-tag
 
 kramdown:
   auto_ids: true

_includes/_head.html

@@ -49,3 +49,6 @@
 <link rel="apple-touch-icon-precomposed" sizes="114x114" href="{{ site.url }}/images/apple-touch-icon-114x114-precomposed.png">
 <!-- 144x144 (precomposed) for iPad 3rd and 4th generation -->
 <link rel="apple-touch-icon-precomposed" sizes="144x144" href="{{ site.url }}/images/apple-touch-icon-144x144-precomposed.png">
+
+<!--Jekyll-seo plugin-->
+{% seo %}