add release instructions

CONTRIBUTING.md

@@ -0,0 +1,26 @@
+# Contributing to chispa
+
+## Contributing
+
+// TODO
+
+## Making a New Release
+
+### Step 1: Update the CHANGELOG.md
+
+1. Create a Pull Request (PR) to update the `CHANGELOG.md`.
+   - Go to the "Create new release" section.
+   - Use "Auto-generate release notes" to help create the changelog.
+   - Edit the notes if needed.
+
+### Step 2: Merge the PR
+
+1. After review and approval, merge the PR into the main branch.
+
+### Step 3: Create a New Release
+
+1. Go to the "Releases" section.
+   - Click "Draft a new release".
+   - Set the tag version as `vx.y.z` (e.g., `v0.11.0`).
+   - Copy the updated `CHANGELOG.md` to the release description.
+   - Publish the release.