docs: fix broken link style (#525)
diff --git a/community/subscribe.md b/community/subscribe.md
index b691854..7b22151 100644
--- a/community/subscribe.md
+++ b/community/subscribe.md
@@ -12,8 +12,9 @@
**Please note: you will need to subscribe to the mailing list first before participating in any discussions.**
### Steps
+
1. Send an e-mail to [dev-subscribe@devlake.apache.org](mailto:dev-subscribe@devlake.apache.org) with an arbitrary subject and content from your own e-mail address.
-2. Receive an confirmation e-mail from [dev-help@devlake.apache.org}(mailto:dev-help@devlake.apache.org) and follow the instruction to reply. The subject and content of the reply e-mail are also arbitrary. (If you have not received the confirmation e-mail, try checking your spam inbox.)
+2. Receive an confirmation e-mail from [dev-help@devlake.apache.org](mailto:dev-help@devlake.apache.org) and follow the instruction to reply. The subject and content of the reply e-mail are also arbitrary. (If you have not received the confirmation e-mail, try checking your spam inbox.)
3. Recevie a welcome e-mail and you will start receiving e-mails from [dev@devlake.apache.org](mailto:dev@devlake.apache.org).
## Unsubscribe from Mailing List
@@ -21,6 +22,7 @@
Although we are incredibly reluctant to see you go, but we respect your choice if you would like to unsubscribe from the mailing list.
### Steps
+
1. Send an e-mail to [dev-unsubscribe@devlake.apache.org](mailto:dev-unsubscribe@devlake.apache.org) with an arbitrary subject and content from your subscribed e-mail address.
-2. Receive an confirmation e-mail from [dev-help@devlake.apache.org}(mailto:dev-help@devlake.apache.org) and follow the instruction to reply. The subject and content of the reply e-mail are also arbitrary. (If you have not received the confirmation e-mail, try checking your spam inbox.)
-3. Receive a goodbye e-mail and you will no longer receive e-mails from [dev@devlake.apache.org](mailto:dev@devlake.apache.org).
\ No newline at end of file
+2. Receive an confirmation e-mail from [dev-help@devlake.apache.org](mailto:dev-help@devlake.apache.org) and follow the instruction to reply. The subject and content of the reply e-mail are also arbitrary. (If you have not received the confirmation e-mail, try checking your spam inbox.)
+3. Receive a goodbye e-mail and you will no longer receive e-mails from [dev@devlake.apache.org](mailto:dev@devlake.apache.org).
