README update: drop github mirror

README.md

@@ -4,7 +4,6 @@
 
 **Homepage:** https://mpxd.net/code/jan/fatamorgana
 * [PyPI](https://pypi.org/project/fatamorgana)
-* [Github mirror](https://github.com/anewusername/fatamorgana)
 
 **Capabilities:**
 * This package is a work-in-progress and is largely untested -- it works for
@@ -28,12 +27,7 @@
 
 Install with pip from PyPi (preferred):
 ```bash
-pip3 install fatamorgana
-```
-
-Install directly from git repository:
-```bash
-pip3 install git+https://mpxd.net/code/jan/fatamorgana.git@release
+pip install fatamorgana
 ```
 
 ## Documentation
@@ -44,7 +38,6 @@ To read the inline help,
 import fatamorgana
 help(fatamorgana.OasisLayout)
 ```
-The documentation is currently very sparse and I expect to improve it whenever possible!
 
 
 ## Examples