diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index ed6e387e4..5ebe8dbb3 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -27,3 +27,25 @@ jobs:
         shell: bash
       - run: go version
       - run: make lint
+
+  prettify:
+    name: Prettify
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+        if: github.event_name == 'pull_request'
+        with:
+          fetch-depth: 0
+          ref: ${{ github.event.pull_request.head.ref }}
+      - uses: actions/checkout@v3
+        if: github.event_name == 'push'
+        with:
+          fetch-depth: 0
+      - name: Install npm v8
+        run: npm i -g npm@8
+      - name: Prettify markdown code
+        uses: creyD/prettier_action@v4.2
+        with:
+          commit_message: "Auto formatting markdown code"
+          prettier_options: --prose-wrap always --write **/*.md
+          github_token: ${{ secrets.GITHUB_TOKEN }}
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index ddb9905ad..b7e5ae086 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -25,6 +25,7 @@ Inspired from [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 - Add implementation of Data Streams API ([#257](https://github.com/opensearch-project/opensearch-go/pull/257)
 - Support for Amazon OpenSearch Serverless ([#216](https://github.com/opensearch-project/opensearch-go/pull/216), [#259](https://github.com/opensearch-project/opensearch-go/pull/259))
 - Add Err() function to Response for detailed errors ([#246](https://github.com/opensearch-project/opensearch-go/pull/246))
+- Add markdown linter ([#261](https://github.com/opensearch-project/opensearch-go/pull/261)
 
 ### Dependencies