add extra-phrase in rules

[alok1304]

Reference #4515

I this PR, I am trying to add an extra-phrase maker in rules. This extra-phrase like [[6]] is inserted between the test Neither the name of and the names of its . I am doing using another repo i.e https://github.com/alok1304/mark-extra-phrase, i also explained in this repo readme how to use this also i added tests on this repo. Like How we add/mark extra-phrase.

I am doing three things, like where we insert extra-phrase:
Replace text between markers according to rules: (eg. between text Neither the name of and the names of its)
1. If extra_phrase already present then do nothing
2. If empty then insert extra_phrase
3. If words present then replace with extra_phrase

Tasks

• Reviewed contribution guidelines
• PR is descriptively titled 📑 and links the original issue above 🔗
• Tests pass -- look for a green checkbox ✔️ a few minutes after opening your PR
  Run tests locally to check for errors.
• Commits are in uniquely-named feature branch and has no merge conflicts 📁
• Updated documentation pages (if applicable)
• Updated CHANGELOG.rst (if applicable)

Signed-off-by: Alok Kumar [email protected]

[alok1304]

Many test cases are currently failing because the previous PR has not yet been merged. Several tests need to be updated, as the current results include false positives. Once the previous PR is merged, I will update the relevant test files accordingly to reflect the new changes.