Add social media share icons to example config

exampleSite/config.yaml

@@ -34,6 +34,14 @@ params:
   # display a "Latest Posts" section on the homepage below its content
   homepageLatestPosts: true
 
+  # social media share icons
+  # shareButtons:
+  #   twitter: true
+  #   facebook: true
+  #   linkedin: true
+  #   reddit: true
+  #   telegram: true
+
   # footer: >-
   #   Some example text for the footer.