docs: add PR template

every pr should follow some commit title
and commit message structure to make it more
clear for reviewers.

Signed-off-by: subhamkrai <[email protected]>

.commitlintrc.json

@@ -0,0 +1,38 @@
+{
+    "extends": [
+        "@commitlint/config-conventional"
+    ],
+    "rules": {
+        "type-enum": [
+            2,
+            "always",
+            [
+                "build",
+                "ci",
+                "core",
+                "csi",
+                "doc",
+                "docs",
+                "mds",
+                "mgr",
+                "mon",
+                "operator",
+                "osd",
+                "test",
+                "tests"
+            ]
+        ],
+        "body-leading-blank": [
+            2,
+            "always"
+        ],
+        "footer-leading-blank": [
+            2,
+            "always"
+        ],
+        "body-max-line-length": [
+            0,
+            "always"
+        ]
+    }
+}

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,17 @@
+<!-- Please take a look at our Contributing documentation before submitting a Pull Request!
+https://rook.io/docs/rook/latest/Contributing/development-flow/
+
+Thank you for contributing to Rook! -->
+
+**Description of your changes:**
+
+**Which issue is resolved by this Pull Request:**
+Resolves #
+
+**Checklist:**
+
+- [ ] **Commit Message Formatting**: Commit titles and messages follow guidelines in the [developer guide](https://rook.io/docs/rook/latest/Contributing/development-flow/#commit-structure).
+- [ ] Reviewed the developer guide on [Submitting a Pull Request](https://rook.io/docs/rook/latest/Contributing/development-flow/#submitting-a-pull-request)
+- [ ] CI tests has been updated, if necessary.
+- [ ] Documentation has been updated, if necessary.
+- [ ] Unit tests have been added, if necessary.

.github/commitlint.yaml

@@ -0,0 +1,37 @@
+name: Commitlint
+on:
+  push:
+    tags:
+      - v*
+    branches:
+      - master
+      - release-*
+  pull_request:
+    branches:
+      - master
+      - release-*
+
+# cancel the in-progress workflow when PR is refreshed.
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event_name == 'pull_request' && github.head_ref || github.sha }}
+  cancel-in-progress: true
+
+permissions:
+  contents: read
+
+jobs:
+  lint:
+    permissions:
+      contents: read  # for actions/checkout to fetch code
+      pull-requests: read  # for wagoid/commitlint-github-action to get commits in PR
+    runs-on: ubuntu-20.04
+    env:
+      GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - uses: wagoid/[email protected]
+        with:
+          configFile: "./.commitlintrc.json"
+          helpURL: https://rook.io/docs/rook/latest/Contributing/development-flow/#commit-structure