Remove environment variable configuration - JSON only approach

- Removed 'Option 2: Via Environment Variables' section
- README now only shows JSON configuration for Claude Desktop and Cursor
- Simplified 'Running the Server' section to focus on main use case
- Environment variables approach moved to DEVELOPMENT.md (for devs only)
- Cleaner, simpler README aligned with user preference

README.md

@@ -52,24 +52,6 @@ This will:
 
 ## Configuration
 
-### Option 1: Via JSON Configuration (Recommended for Claude Desktop/Cursor)
-
-Set your Jira credentials in the Claude Desktop or Cursor MCP configuration file and skip this section.
-
-### Option 2: Via Environment Variables
-
-If you're running the server from the command line manually, set these environment variables:
-
-```bash
-export JIRA_SERVER="https://your-jira-domain.com"
-export JIRA_USERNAME="your_email_or_username"
-export JIRA_PASSWORD="your_api_token_or_password"
-export JIRA_DEFAULT_PROJECT="PROJ"           # Optional
-export JIRA_QA_TESTER="tester_username"       # Optional
-```
-
-Then run: `jira-mcp` or `python -m jira_mcp`
-
 ### Using with Claude Desktop
 
 Edit your `claude_desktop_config.json`:
@@ -112,21 +94,17 @@ That's it! The credentials are configured in the JSON file.
    - `JIRA_DEFAULT_PROJECT`: `PCM` (optional)
    - `JIRA_QA_TESTER`: `Samia Islam` (optional)
 
-**Note:** For manual installations with custom Python paths, see [DEVELOPMENT.md](DEVELOPMENT.md).
-
 ---
 
 ## Running the Server
 
-### Using the Command Entry Point
-```bash
-jira-mcp
-```
+### Claude Desktop & Cursor
+Simply run Claude Desktop or Cursor - the MCP server will start automatically with the configuration you defined in the JSON/UI.
 
-### Using Python Module Runner
-```bash
-python -m jira_mcp
-```
+### Manual Command Line (Development)
+For development or manual testing, see [DEVELOPMENT.md](DEVELOPMENT.md) for running:
+- `jira-mcp`
+- `python -m jira_mcp`
 
 ---