Changed the web address used in pip install command for code.usgs.gov

docs/install.md

@@ -34,7 +34,7 @@
 
 2.  Install **geomagio**
 
-        pip install git+https://github.com/usgs/geomag-algorithms.git
+        pip install git+https://code.usgs.gov/ghsc/geomag/geomag-algorithms.git
 
 3.  Use **geomagio**