Update README.md

Author: brittjay0104

README.md

@@ -19,6 +19,7 @@ If you want to run or use Holmes on your own machine, you will need to do the fo
 1. Import the Holmes directory into Eclipse (*File > Import... > General/Existing Projects into Workspace*).
 2. Once imported, open the *RunHolmes.java* file. At the top there is a global field called **workingDirectory**. Update this variable with the path to the Holmes directory on your machine.
 3. Update the paths to python and node in the fuzzing script ([Holmes/fuzzers/fuzz.sh](https://github.com/LASER-UMASS/CausalTesting-Artifact_ICSE20/blob/master/Holmes/fuzzers/fuzz.sh)) to the locations for python and node on your machine.
+4. From here, you can install Holmes by either [exporting the plug-in](https://help.eclipse.org/2019-12/index.jsp?topic=%2Forg.eclipse.pde.doc.user%2Fguide%2Ftools%2Fexport_wizards%2Fexport_plugins.htm) or [installing the plug-in to your host Eclipse](https://help.eclipse.org/2019-12/index.jsp?topic=%2Forg.eclipse.pde.doc.user%2Fguide%2Ftools%2Fexport_wizards%2Fexport_plugins.htm). 
 
 ## How to use Holmes