cleanup pip install

README.md

@@ -45,8 +45,7 @@ This is the Map ID, Seed edit **enabled**:
 
 
 ## Build GUI
-`pip install wxpython`  
-`pip install pyinstaller`  
+`pip install wxpython pyinstaller`  
 `pyinstaller --add-data 'd2logo_sm.png;.' --onefile -w d2s_edit.py`  ([Note](https://pyinstaller.readthedocs.io/en/stable/usage.html#what-to-bundle-where-to-search): use `d2logo_sm.png;.` on windows  and `d2logo_sm.png:.` on most unix systems)