Updated contributing guide to require signed commits, added thumbs up/down feedback to mintlify

CONTRIBUTING.md

@@ -5,14 +5,56 @@ Thank you for your interest in contributing to the Model Context Protocol (MCP)
 ## Getting Started
 
 1. Install the required tools:
-    - Node.js
-    - Git
-    - [Mintlify CLI](https://www.npmjs.com/package/mintlify): `npm i -g mintlify`
-
+   - Node.js
+   - Git
+   - [Mintlify CLI](https://www.npmjs.com/package/mintlify): `npm i -g mintlify`
 2. Fork and clone the repository
 3. Create a new branch for your changes
 4. Run `mintlify dev` to preview changes locally
 
+## Signing Your Commits
+
+We require all commits to be signed to verify the identity of contributors. Here's how to set up commit signing:
+
+1. Generate a GPG key if you don't have one:
+
+   ```bash
+   gpg --full-generate-key
+   ```
+
+   - Choose RSA and RSA (default)
+   - Choose 4096 bits
+   - Enter your name and email (must match GitHub email)
+
+2. Get your GPG key ID:
+
+   ```bash
+   gpg --list-secret-keys --keyid-format=long
+   ```
+
+3. Configure Git to use your GPG key:
+
+   ```bash
+   git config --global user.signingkey YOUR_KEY_ID
+   git config --global commit.gpgsign true
+   ```
+
+4. Add your GPG key to GitHub:
+
+   - Copy your GPG key: `gpg --armor --export YOUR_KEY_ID`
+   - Go to GitHub Settings > SSH and GPG keys
+   - Click "New GPG key" and paste your key
+
+5. For each commit, use:
+   ```bash
+   git commit -S -m "Your commit message"
+   ```
+   The `-S` flag signs your commit. With `commit.gpgsign` configured, you can omit the `-S` flag.
+
+Note: On Windows, you might need to [download GPG4Win](https://www.gpg4win.org/) and configure its path in Git.
+
+[You can learn more about signed commits here.](https://docs.github.com/en/authentication/managing-commit-signature-verification/about-commit-signature-verification)
+
 ## Documentation Guidelines
 
 - Keep content clear, concise, and technically accurate

mint.json

@@ -64,5 +64,8 @@
   ],
   "footerSocials": {
     "github": "https://github.com/modelcontextprotocol"
+  },
+  "feedback": {
+    "thumbsRating": true
   }
 }