Remove repeated word
docs: while reading the docs I noticed the word "for" was repeated twice and I removed one of them.
Checklist
- [ x] documentation is changed or added
- [x ] commit message follows commit guidelines
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
docs: while reading the docs I noticed the word "for" was repeated twice and I removed one of them.