Add GitHub OAuth setup documentation to README

Co-authored-by: ajnart <49837342+ajnart@users.noreply.github.com>

web/README.md

@@ -11,6 +11,9 @@ A web application to browse, search, and download icons from the [Dashboard Icon
 - Copy icon URLs directly to your clipboard
 - Responsive design that works on mobile, tablet, and desktop
 - Dark mode support
+- **User authentication** - Sign in with email/password or GitHub OAuth
+- **Submit icons** - Authenticated users can submit new icons to the collection
+- **Admin dashboard** - Admins can approve, reject, and manage icon submissions
 
 ## Tech Stack
 
@@ -18,6 +21,8 @@ A web application to browse, search, and download icons from the [Dashboard Icon
 - **TypeScript v5** - Type-safe JavaScript
 - **Tailwind CSS** - Utility-first CSS framework
 - **Shadcn UI** - Reusable components built with Radix UI and Tailwind
+- **PocketBase** - Backend for authentication and data storage
+- **PostHog** - Product analytics and user tracking
 
 ## Project Structure
 
@@ -67,8 +72,31 @@ src/
 3. Create a `.env` file with the following variables:
    ```
    GITHUB_TOKEN=your_github_token
+   NEXT_PUBLIC_POCKETBASE_URL=http://127.0.0.1:8090
    ```
-4. Start the development server:
+4. **Configure GitHub OAuth (Optional):**
+   
+   To enable GitHub OAuth login, you need to create a GitHub OAuth App and configure it in PocketBase:
+
+   a. Create a GitHub OAuth App:
+      - Go to GitHub Settings → Developer settings → OAuth Apps → New OAuth App
+      - Set Application name: "Dashboard Icons" (or your preferred name)
+      - Set Homepage URL: `http://localhost:3000` (for development)
+      - Set Authorization callback URL: `http://localhost:8090/api/oauth2-redirect`
+      - After creation, note the **Client ID** and generate a **Client Secret**
+
+   b. Configure PocketBase OAuth:
+      - Start PocketBase: `pnpm run backend:start`
+      - Open PocketBase admin UI at `http://127.0.0.1:8090/_/`
+      - Navigate to Settings → Auth providers
+      - Enable GitHub provider and enter your Client ID and Client Secret
+      - Save the settings
+
+   c. For production deployment:
+      - Update the Authorization callback URL to: `https://pb.dashboardicons.com/api/oauth2-redirect`
+      - Configure the same OAuth settings in your production PocketBase instance
+
+5. Start the development server:
    ```bash
    pnpm dev
    ```