v8.4.0

What's Changed

• [REFACTOR] Fix typo in retrieve requests by @ArunPrakashG in #49
• [MERGE] Merge dev with master by @ArunPrakashG in #50
• Update README.md by @ArunPrakashG in #52
• Dev by @ArunPrakashG in #53
• Update WordPress Client README by @ArunPrakashG in #54
• [FEATURE] Middlewares by @ArunPrakashG in #56
• Update version to 8.4.0 by @ArunPrakashG in #57

Full Changelog: v8.3.7...v8.4.0