Update README.md

README.md

@@ -29,12 +29,14 @@ conda create -n addie_env python=${python_version}
 source activate addie_env
 ```
 
-**Install**
+**Install (or Update)**
 
 ```
 conda install -c addie-diffraction addie 
 ```
 
+If there are issues with `mantid-workbench` or `mantid-total-scattering`  dependencies (broken, errors, etc.), then you can delete the environment and re-install `addie` in a new environment ("turn it off and back on again")
+
 **Notes**
 
 If you have an error (see below for example) related to the `libGL` library, you may not have it installed for the Mantid Framework to work. See instructions [here](https://github.com/mantidproject/conda-recipes/#gl-and-glu-libs) for installing the necessary libraries for different OS