Remove extra social links to stop poluting the CV

Author: nelsonmestevao

_data/data.yml

@@ -28,10 +28,10 @@ sidebar:
     stack-overflow: # Number/Username, e.g. 123456/alandoe
     codewars:
     goodreads: # Number-Username, e.g. 123456-alandoe
-    mastodon: https://fosstodon.org/@plinkr # Please include your full Mastodon link here.
-    hackerrank: plinkr # Please provide your HackerRank username.
-    leetcode: plinkr # Please provide your LeetCode username.
-    pdf: http://www.africau.edu/images/default/sample.pdf
+    mastodon:  # Please include your full Mastodon link here.
+    hackerrank: # Please provide your HackerRank username.
+    leetcode: # Please provide your LeetCode username.
+    pdf: # Add a PDF link here if you want to include a PDF custom version in your resume.
 
     languages:
       title: Languages