### _Why are the changes needed?_
Minor doc fix.
### _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#3191 from pan3793/doc-jar.
Closes#3191
6a9c6dc5 [Cheng Pan] [DOCS] Add missing binary scala version in engine jar name
Authored-by: Cheng Pan <chengpan@apache.org>
Signed-off-by: Cheng Pan <chengpan@apache.org>