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### _Why are the changes needed?_
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Some spelling & grammar format 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.readthedocs.io/en/latest/develop_tools/testing.html#running-tests) locally before make a pull request
Closes#1347 from zhenjiaguo/typo-fix.
Closes#1347
5c20ae28 [zhenjiaguo] change serial to several
db3fa969 [zhenjiaguo] typo fix
Authored-by: zhenjiaguo <zhenjia_guo@163.com>
Signed-off-by: ulysses-you <ulyssesyou@apache.org>
0f1d4ec0e0