docs: Add Docker setup instructions to README

This PR adds instructions for setting up and running the Context7 MCP server using Docker, as requested by @enesgules in issue #[ЗДЕСЬ_НОМЕР_ВАШЕГО_ISSUE].

A new section `### Using Docker` has been added under `## Getting Started` in the `README.md` file.

This section includes:

*   A sample `Dockerfile` for building the server image (placed within `<details>` for conciseness).
*   The command to build the Docker image (`docker build`).
*   An example configuration snippet showing how to set up an MCP client (like Cline, Cursor, etc.) to execute the server via `docker run -i --rm`.
*   Important notes reminding users to ensure Docker is running, to execute `docker build` in the correct directory, and to adapt the client configuration based on specific client examples provided earlier in the README.

This provides users with an alternative method for running the MCP server in an isolated Docker environment.

README.md

@@ -155,6 +155,59 @@ Add this to your Claude Desktop `claude_desktop_config.json` file. See [Claude D
 }
 ```
 
+### Using Docker
+
+If you prefer to run the MCP server in a Docker container:
+
+1.  **Build the Docker Image:**
+
+    First, create a `Dockerfile` in the project root (or anywhere you prefer):
+
+    <details>
+    <summary>Click to see Dockerfile content</summary>
+
+    ```Dockerfile
+    FROM node:18-alpine
+
+    WORKDIR /app
+
+    # Install the latest version globally
+    RUN npm install -g @upstash/context7-mcp@latest
+
+    # Expose default port if needed (optional, depends on MCP client interaction)
+    # EXPOSE 3000
+
+    # Default command to run the server
+    CMD ["context7-mcp"]
+    ```
+
+    </details>
+
+    Then, build the image using a tag (e.g., `context7-mcp`). **Make sure Docker Desktop (or the Docker daemon) is running.** Run the following command in the same directory where you saved the `Dockerfile`:
+
+    ```bash
+    docker build -t context7-mcp .
+    ```
+
+2.  **Configure Your MCP Client:**
+
+    Update your MCP client's configuration to use the Docker command.
+
+    *Example for a cline_mcp_settings.json:*
+
+    ```json
+    {
+      "mcpServers": {
+        "Сontext7": {
+          "command": "docker",
+          "args": ["run", "-i", "--rm", "context7-mcp"],
+          "transportType": "stdio"
+        }
+      }
+    }
+    ```
+    *Note: This is an example configuration. Please refer to the specific examples for your MCP client (like Cursor, VS Code, etc.) earlier in this README to adapt the structure (e.g., `mcpServers` vs `servers`) and server name (`context7` vs `Context7`). Also, ensure the image name in `args` matches the tag used during the `docker build` command.*
+
 ### Available Tools
 
 - `resolve-library-id`: Resolves a general library name into a Context7-compatible library ID.