[KYUUBI #1898] Enhance release guide add more information about how to…

… generate mail content automatically

<!--
Thanks for sending a pull request!

Here are some tips for you:
  1. If this is your first time, please read our contributor guidelines: https://kyuubi.readthedocs.io/en/latest/community/contributions.html
  2. If the PR is related to an issue in https://github.com/apache/incubator-kyuubi/issues, add '[KYUUBI #XXXX]' in your PR title, e.g., '[KYUUBI #XXXX] Your PR title ...'.
  3. If the PR is unfinished, add '[WIP]' in your PR title, e.g., '[WIP][KYUUBI #XXXX] Your PR title ...'.
-->

### _Why are the changes needed?_
<!--
Please clarify why the changes are needed. For instance,
  1. If you add a feature, you can talk about the use case of it.
  2. If you fix a bug, you can clarify why it is a bug.
-->

### _How was this patch tested?_
- [ ] Add some test cases that check the changes thoroughly including negative and positive cases if possible

- [ ] Add screenshots for manual tests if appropriate

- [ ] [Run test](https://kyuubi.apache.org/docs/latest/develop_tools/testing.html#running-tests) locally before make a pull request

Closes #1900 from yanghua/KYUUBI-1898.

Closes #1898

782ff20 [yanghua] [KYUUBI-1898] Enhance release guide add more information about how to generate mail content automatically

Authored-by: yanghua <yanghua1127@gmail.com>
Signed-off-by: Cheng Pan <chengpan@apache.org>

Author: yanghua

docs/community/release.md

@@ -211,9 +211,16 @@ The release voting takes place on the Apache Kyuubi (Incubating) developers list
 - Recommend represent voting closing time in UTC format.
 - Make sure the email is in text format and the links are correct
 
+> Note: you can generate the voting mail content for dev ML automatically via invoke the `build/release/script/dev_kyuubi_vote.sh` script. 
+
 Once the vote is done, you should also send out a summary email with the totals, with a subject that looks
 something like __[VOTE][RESULT] ....__
 
+Then, you can move the release vote on the general incubator mailing list, and generate the voting mail content automatically via invoke the `build/release/script/general_incubator_vote.sh` script.
+Also, you should send out a summary email like dev ML voting.
+
+> Note, any reason causes voting cancel. You should re-vote on the dev ML firstly.
+
 ## Finalize the Release
 
 __Be Careful!__
@@ -255,6 +262,7 @@ Fork and clone [Apache Kyuubi website](https://github.com/apache/incubator-kyuub
 ### Create an Announcement
 
 Once everything is working, create an announcement on the website and then send an e-mail to the mailing list.
+You can generate the announcement via `buld/release/script/announce.sh` automatically.
 The mailing list includes: `general@incubator.apache.org`, `announce@apache.org`, `dev@kyuubi.apache.org`, `user@spark.apache.org`.
 
 Enjoy an adult beverage of your choice, and congratulations on making a Kyuubi release.