update install

README.md

@@ -10,6 +10,16 @@ Documentation for the class can be found at
 
 ### Installation
 
+If your credentials for PDSD GitLab
+are not stored in git, you can specify your Username and Password manually in the terminal
+
+```bash
+pip install git+https://Username:Password@git.photonicdata.science/py-packages/photonicdata-files-wip.git
+```
+
+If you have your username and password configured
+then the easiest way is to install from gitLab directly (requires credentials)
+
 ```bash
 pip install git+ssh://git@git.photonicdata.science:30024/py-packages/photonicdata-files-wip.git
 ```