Add support for plausible.io

Author: DavidS

README.md

@@ -14,6 +14,7 @@ Supported:
   - [Matomo](https://matomo.org/)
   - [Piwik](https://piwik.org/)
   - [mPulse](https://www.soasta.com/performance-monitoring/)
+  - [Plausible](https://plausible.io)
 
 ## Installation
 
@@ -56,6 +57,10 @@ jekyll_analytics:
 
   MPulse:                   # Add if you want to track performance with mPulse
     apikey: XXXXX-YYYYY-ZZZZZ-AAAAA-23456   # Required - replace with your mPulse API key
+
+  Plausible:
+    domain: 'example.com'   # The domain configured in plausible
+    source: 'https://plausible.example.com/js/plausible.js' # The source of the javascript
 ```
 
 ## Usage

lib/analytics/plausible.rb

@@ -0,0 +1,10 @@
+class Plausible
+    def initialize(config)
+        @domain = config['domain']
+        @source = config['source']
+    end
+
+    def render()
+        return "<script async defer data-domain=\"#{@domain}\" src=\"#{@source}\"></script>"
+    end
+end