Edit roles file for matrix-bot-chatgpt: align example user ID with the documentation

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

roles/custom/matrix-bot-chatgpt/defaults/main.yml

@@ -57,7 +57,7 @@ matrix_bot_chatgpt_keyv_bot_storage: true
 # Matrix Static Settings (required, see notes)
 # Defaults to "https://matrix.org"
 matrix_bot_chatgpt_matrix_homeserver_url: ""  # MATRIX_HOMESERVER_URL=
-# With the @ and :example.com, ie @alice:example.com, needs to be set, created manually beforehand.
+# With the @ and :example.com, ie @bot.chatgpt:example.com, needs to be set, created manually beforehand.
 matrix_bot_chatgpt_matrix_bot_username_localpart: 'bot.chatgpt'
 matrix_bot_chatgpt_matrix_bot_username: "@{{ matrix_bot_chatgpt_matrix_bot_username_localpart }}:{{ matrix_domain }}"  # MATRIX_BOT_USERNAME=
 # Set `MATRIX_BOT_PASSWORD` the bot will print an `MATRIX_ACCESS_TOKEN` to the terminal

roles/custom/matrix-bot-chatgpt/templates/env.j2

@@ -10,7 +10,7 @@ KEYV_URL={{ matrix_bot_chatgpt_keyv_url }}
 KEYV_BOT_ENCRYPTION={{ matrix_bot_chatgpt_keyv_bot_encryption|lower }}
 KEYV_BOT_STORAGE={{ matrix_bot_chatgpt_keyv_bot_storage|lower }}
 
-# With the @ and :example.com, ie @alice:example.com
+# With the @ and :example.com, ie @bot.chatgpt:example.com
 MATRIX_BOT_USERNAME={{ matrix_bot_chatgpt_matrix_bot_username }}
 MATRIX_BOT_PASSWORD={{ matrix_bot_chatgpt_matrix_bot_password }}