add additional info in backport process
add information in backporting process related to cherry-picking
main PR and related fixes
@@ -189,6 +189,9 @@ process:
```console
$ git cherry-pick -xsS <commit>
```
+ (Optional) If other commits exist in the main branch which are related
+ to the cherry-picked commit; eg: fixes to the main PR. It is recommended
+ to cherry-pick those commits also into this same `my-backport-branch`.
4. Push the branch and open up a PR against the _release branch_:
```
