Top Token Holders Telegram Bot Guide (#126)

* Adding the first draft of the Top Token Holders Telegram Bot guide.

* Improving the Top Token Holders Telegram Bot guide based on Christoph's feedback.

* Updating the contents, formatting, etc. of the Top Token Holders Guide to make sure it's accurate and aligned with reader goals of understanding Subscriptions API.

Author: dericksozo

docs.json

@@ -43,7 +43,8 @@
                       "evm/show-nfts-collectibles"
                     ]
                   },
-                  "evm/build-a-realtime-chat-agent"
+                  "evm/build-a-realtime-chat-agent",
+                  "evm/build-a-top-holders-tracker-bot"
                 ]
               },
               "evm/supported-chains",