Add how to install directly from git via pip3 in README.md

README.md

@@ -6,10 +6,16 @@ This package provides a set of UI built on top of ipywidgets. UI are small sets
 
 To install nbUI, download this repository, unpack it and run:
 
-```python
+```bash
 python3 -m pip install --user -U ./
 ```
 
+Or directly from gitlab!
+
+```bash
+python3 -m pip install git+https://gitlab.com/discosoleil/nbui
+```
+
 ## List of nbUI
 
 ### SelectFolders: A simple folders selection