release doc improvement

Author: SbloodyS

docs/docs/en/contribute/release.md

@@ -203,7 +203,7 @@ We need to update some documentation before the Maven release. For example, to r
     - `docs/docs/en/history-versions.md` and `docs/docs/zh/history-versions.md`: Add the new version and link for `x.y.z`
   - `docs/configs/docsdev.js`: change `/dev/` to `/x.y.z/`, **DO NOT** change this filename, is will be auto change by website tools.
 
-> Note: `VERSION` is a place hold string, is same as the version we set in `VERSION=<THE-VERSION-YOU-RELEASE>`. 
+> Note: `VERSION` is a place hold string, is same as the version we set in `VERSION=<THE-VERSION-YOU-RELEASE>`.
 > Please merge the dev branch of the main warehouse before merging the master branch of the website. When the modified pull requests are merged, it will take effect.
 
 ### Modify Correct year in NOTICE file