Add pixi tasks for examples and update documentation

- Add example-read, example-write, example-file-io tasks to pixi.toml
- Update workflow to use pixi example tasks
- Update WARP.md with correct example commands
- Remove references to non-existent example-quickstart and example-simple

Co-Authored-By: Warp <agent@warp.dev>

Author: Mjboothaus

.github/workflows/test.yml

@@ -30,8 +30,8 @@ jobs:
 
     - name: Run examples
       run: |
-        mojo -I src examples/read_example.mojo
-        mojo -I src examples/write_example.mojo
+        pixi run example-read
+        pixi run example-write
 
     - name: Test summary
       if: always()

WARP.md

@@ -27,9 +27,10 @@ pixi run test-configparser   # Python compatibility tests
 # Check Mojo version
 pixi run mojo-version
 
-# Run examples (when implemented)
-pixi run example-quickstart  # Basic usage
-pixi run example-simple      # Comprehensive API demo
+# Run examples
+pixi run example-read        # Basic parsing demonstration
+pixi run example-write       # INI generation demonstration
+pixi run example-file-io     # File reading/writing with modifications
 
 # Build package
 pixi run build-package       # Creates dist/ini.mojopkg
@@ -44,7 +45,7 @@ pixi run clean
 mojo -I src tests/test_lexer.mojo
 
 # Examples
-mojo -I src examples/quickstart.mojo
+mojo -I src examples/read_example.mojo
 ```
 
 **Important:** Always use `-I src` flag when running Mojo files to include the source directory.

pixi.toml

@@ -27,8 +27,9 @@ build-package = "mkdir -p dist && mojo package src/ini -o dist/ini.mojopkg"
 clean = "rm -rf dist __pycache__ .pytest_cache ini.mojopkg"
 
 # Example tasks
-example-quickstart = "mojo -I src examples/quickstart.mojo"
-example-simple = "mojo -I src examples/simple.mojo"
+example-read = "mojo -I src examples/read_example.mojo"
+example-write = "mojo -I src examples/write_example.mojo"
+example-file-io = "mojo -I src examples/file_io_example.mojo"
 
 # Benchmark tasks
 benchmark-mojo = "python benchmarks/run_mojo_benchmark.py"