Update Python sample app

Author: justinyoo

.gitignore

@@ -389,6 +389,9 @@ FodyWeavers.xsd
 !.vscode/.gitkeep
 *.code-workspace
 
+# GitHub Copilot custom instructions
+.github/copilot-instructions.md
+
 # Local History for Visual Studio Code
 .history/
 
@@ -437,4 +440,16 @@ mtj.tmp/
 
 # virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
 hs_err_pid*
-replay_pid*
+replay_pid*
+
+python/
+!python/README.md
+
+javascript/
+!javascript/README.md
+
+java/
+!java/README.md
+
+dotnet/
+!dotnet/README.md

README.md

@@ -34,6 +34,7 @@ During this workshop, [GitHub Codespaces](https://docs.github.com/en/codespaces/
 
 - [pyenv](https://github.com/pyenv/pyenv) or [pyenv for Windows](https://github.com/pyenv-win/pyenv-win)
 - Python 3.12+ through pyenv
+- `uv` package manager (recommended) or `pip`
 - VS Code [Python](https://marketplace.visualstudio.com/items/?itemName=ms-python.python) Extension
 - VS Code [Pylance](https://marketplace.visualstudio.com/items/?itemName=ms-python.vscode-pylance) Extension
 - VS Code [Python Debugger](https://marketplace.visualstudio.com/items/?itemName=ms-python.debugpy) Extension