readme

README.md

-# DoubleTank
+# DoubleTankLab
 
-Not a module yet
+This module is used for the doubletank lab.
+
+## Usage
+After running `using DoubleTankLab` in the REPL, the method `runprocess()` runs the tank lab GUI with a physical process. Running `runsimulation()` runs it as a simulation. The GUI is then accessible via browser, by default at <http://0.0.0.0:8000>.