diff --git a/Benchmarking-your-changes.md b/Benchmarking-your-changes.md
index 2f13c6c..bf4178b 100644
--- a/Benchmarking-your-changes.md
+++ b/Benchmarking-your-changes.md
@@ -1,32 +1,39 @@
-When working on issues related to performance, it is important to provide a performance benchmark for your changes to assess whether or not your change has a performance impact. PDF.js provides tools to do this easily. Normally you would create a simple manifest file has couple of pdfs you trying to optimize and run it multiple times, e.g. `my_pdfs.json`:
+When working on issues related to performance, it is important to provide a performance benchmark for your changes to assess whether or not your change has a performance impact. PDF.js provides tools to do this easily. Normally you would create a simple manifest file has a couple of PDF files you're trying to optimize and run it multiple times, e.g. `benchmark.json`:
 
 ```
 [
-    {  "id": "tracemonkey-eq",
-       "file": "pdfs/tracemonkey.pdf",
-       "md5": "9a192d8b1a7dc652a19835f6f08098bd",
-       "rounds": 20,
-       "lastPage": 5,
-       "type": "load"
-    }
+  {
+    "id": "tracemonkey-eq",
+    "file": "pdfs/tracemonkey.pdf",
+    "md5": "9a192d8b1a7dc652a19835f6f08098bd",
+    "rounds": 20,
+    "lastPage": 5,
+    "type": "load"
+  }
 ]
 ```
 
-Run the following command to create a 'baseline' measurement (before you make your changes):
+Run the following commands to create a 'baseline' measurement (i.e., before you make your changes):
 
+    $ git checkout master
+    $ gulp generic
     $ cd test
     $ node test.js --browserManifestFile=resources/browser_manifests/browser_manifest.json \
         --statsFile=stats/results/baseline.json --statsDelay=5000 \
-        --manifestFile=my_pdfs.json
+        --manifestFile=benchmark.json
 
-Then apply your changes and create a 'current' measurement:
+Then apply your changes and create a 'current' measurement (replace `<feature-branch>` with the name of your branch):
 
+    $ cd ..
+    $ git checkout <feature-branch>
+    $ gulp generic
+    $ cd test
     $ node test.js --browserManifestFile=resources/browser_manifests/browser_manifest.json \
         --statsFile=stats/results/current.json --statsDelay=5000 \
-        --manifestFile=my_pdfs.json
+        --manifestFile=benchmark.json
 
-Now you can compare the measurements and see any performance differences:
+Finally, you can compare the measurements and see any performance differences:
 
-    node stats/statcmp.js stats/results/baseline.json stats/results/current.json
+    $ node stats/statcmp.js stats/results/baseline.json stats/results/current.json
 
 As a sanity check, you should do this twice with the same code and compare the results.
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