Update README.md

Author: JaoCR

README.md

@@ -1,2 +1,10 @@
 # labfis.py
 Small library (currently only one class) for uncertainty calculations. Made by and for Physics Laboratory students in IFSC, who can't use uncertainties.py because mean absolute deviation.
+
+To get this library on google colaboratory:
+    
+```
+!curl --remote-name \
+     -H 'Accept: application/vnd.github.v3.raw' \
+     --location https://raw.githubusercontent.com/Ovenbird-j/labfis.py/master/labfis.py
+```