Update README.md

Author: brittjay0104

README.md

@@ -12,21 +12,20 @@ Our artifact includes the following:
 1. A virtual machine file (CausalTesting_Artifact.ova) that contains
 the user study setup and source code for the version of Holmes used.
 
-2. The form participants completed as they worked through
-each defect in the user study (Cause-Identification-Form.pdf).
+2. Instructions for obtaining and running Holmes on the virtual machine ([INSTALL.md](https://github.com/LASER-UMASS/CausalTesting-Artifact_ICSE20/blob/master/INSTALL.md)).
 
-3. The post-questionnaire participants filled out as a form of
-debriefing following the study (Evaluation-Questionnaire.pdf)
+3. The form participants completed as they worked through
+each defect in the user study ([Cause-Identification-Form.pdf](https://github.com/LASER-UMASS/CausalTesting-Artifact_ICSE20/blob/master/Cause-Identification-Form.pdf)).
 
-4. The demographic questionnaire used to gather information about our
-   participants background and experience (Demographic-Questionnaire.pdf).
+4. The post-questionnaire participants filled out as a form of
+debriefing following the study ([Evaluation-Questionnaire.pdf](https://github.com/LASER-UMASS/CausalTesting-Artifact_ICSE20/blob/master/Evaluation-Questionnaire.pdf))
 
-5. The script used to explain to participants what they would be doing
-   during the user study (User-Study-Script.pdf).
+5. The demographic questionnaire used to gather information about our
+   participants background and experience ([Demographic-Questionnaire.pdf](https://github.com/LASER-UMASS/CausalTesting-Artifact_ICSE20/blob/master/Demographic-Questionnaire.pdf)).
+
+6. The script used to explain to participants what they would be doing
+   during the user study ([User-Study-Script.pdf](https://github.com/LASER-UMASS/CausalTesting-Artifact_ICSE20/blob/master/User-Study-Script.pdf)).
 
 ## Where can I obtain the artifact components?
 
 All the above listed artifacts, with the exception of the virtual machine file, are located in this repository.
-
-
-The **INSTALL.md** file provides details on how to locate, set up, and run the virutal machine.