Update pantheon-takeover.yaml

- Correct link to issue. 
- Medium article (wrote by me)

takeovers/pantheon-takeover.yaml

@@ -5,7 +5,8 @@ info:
   author: pdteam
   severity: high
   reference:
-    - https://github.com/EdOverflow/can-i-take-over-xyz
+    - https://github.com/EdOverflow/can-i-take-over-xyz/issues/24
+    - https://medium.com/bug-bounty/how-i-took-over-several-stanford-subdomains-also-let-me-explain-you-the-pain-to-report-it-d84b08704be8
   tags: takeover
 
 requests:
@@ -21,4 +22,4 @@ requests:
 
       - type: word
         words:
-          - "The gods are wise, but do not know of the site which you seek."
+          - "The gods are wise, but do not know of the site which you seek."