Update Readme

README.md

@@ -1,27 +1,44 @@
 # WoLiBaFoNaGen
+
 Word List Based Font Name Generator
 
 ![](https://github.com/jenskutilek/WoLiBaFoNaGen/blob/master/images/screenshot-mac.png)
 
-The generator uses the wxPython UI library. So if you don’t have it installed already, you need to install it before you can run WoLiBaFoNaGen:
+## Development
+
+Install the dependencies before you can run or build WoLiBaFoNaGen, preferably
+in a virtual environment:
 
 ```bash
-$ pip --user install wx
+$ python3 -m venv venv
+$ source venv/bin/activate
+$ pip install -r requirements-dev.txt
 ```
 
 Run:
 
 ```bash
-$ python WoLiBaFoNaGen.py
+$ python3 WoLiBaFoNaGen.py
 ```
 
-Build the Mac app:
+Build and debug as a Mac app:
 
 ```bash
-$ pip install --user --ignore-installed py2app
-$ python setup.py py2app
+$ make debug
 ```
 
+Build the Mac app for distribution:
+
+```bash
+$ make dist
+```
+
+## Outdated information
+
+### Windows
+
+Those instructions have not been updated for Python 3 yet.
+
 Build the Windows app:
 
 ```bash