Fix typo in module name: CallbackQueyContext -> CallbackQueryContext

README.md

@@ -245,7 +245,7 @@ class Telegram::WebhookController < Telegram::Bot::UpdatesController
 end
 ```
 
-You can use `CallbackQueyContext` in the similar way to split `#callback_query` into
+You can use `CallbackQueryContext` in the similar way to split `#callback_query` into
 several specific methods. It doesn't require session support, and takes context from
 data. If data has a prefix with colon like this `my_ctx:smth...` it'll call
 `my_ctx_callback_query('smth...')` when there is such action method. Otherwise