Science data: lat/lon to cartesian

README.md

@@ -52,6 +52,11 @@ Clone this repository then run
 colcon build
 ```
 
+Developers may want to build tests. Note that this would take longer:
+```
+colcon build --cmake-args "-DBUILD_TESTING=ON"
+```
+
 ## To test simulation in Ignition standalone (without MBARI integration)
 
 This package comes with an empty example world. To run this example world simply