diff --git a/Bisecting-a-Regression.md b/Bisecting-a-Regression.md
index 0e94773..69fcc00 100644
--- a/Bisecting-a-Regression.md
+++ b/Bisecting-a-Regression.md
@@ -1,50 +1,46 @@
-At a minimum you will need Git and Node.js.
+The minimum requirements are Git and Node.js.
 
-## Getting PDF.js
-- Start the Git command line
-- Change to a directory where you want to place PDF.js
-- Run `git clone git://github.com/mozilla/pdf.js.git`
+## Clone PDF.js
+- Open the Git command line.
+- Change to a directory where you want to place PDF.js.
+- Run `git clone git://github.com/mozilla/pdf.js.git`.
 
-## Open PDF.js
+## Start PDF.js
 
-### Option 1 - Node.js server
-- Run `cd pdf.js`
-- Run `gulp server`
-- Open a browser and go to `http://localhost:8080/web/viewer.html`
+### Using Node.js
+- Run `cd pdf.js`.
+- Run `gulp server`.
+- Open a browser and visit `http://localhost:8080/web/viewer.html`.
 
-### Option 2 - Another server
-- Open a browser and go to `http://<yourserver>/pdf.js/web/viewer.html`
+### Using another server
+- Open a browser and go to `http://<yourserver>/pdf.js/web/viewer.html`.
 
 ## Verify the regression
-- Download the bad PDF and open it with the above viewer (using, for example, the Open File button in the toolbar) and verify that the PDF is broken.
+Download the bad PDF and open it with the above viewer (using, for example, the "Open File" button in the toolbar) and verify that rendering the PDF is broken.
 
-## Start the bisecting process
-- Mark the current version as bad using `git bisect start` and `git bisect bad`.
+## Start the bisection process
+Mark the current version as bad using `git bisect start` and `git bisect bad`.
 
-## Find bad commit ID
+## Find the bad commit ID
 
-### Option 1 - Detecting version / commit of PDF.js installed in Firefox
-- Open `resource://pdf.js/build/pdf.js`
-- Find the commit in the line with 'PDFJS.build = '
-- Find the version in the line with 'PDFJS.version = '
+### Using the commit/version of PDF.js installed in Firefox
+- Open `resource://pdf.js/build/pdf.js`.
+- Find the commit in the line with `PDFJS.build =`.
+- Find the version in the line with `PDFJS.version =`.
 
-### Option 2 - Using Bugzilla patch
-- A Bugzilla patch contains the commit information near `browser/extensions/pdfjs/content/build/pdf.js` [e.g., see https://bug871530.bugzilla.mozilla.org/attachment.cgi?id=750657, was added3d (good), will be 869b878 (bad)]
+### Using a Bugzilla patch
+A Bugzilla patch contains the commit information near `browser/extensions/pdfjs/content/build/pdf.js`, e.g., see https://bug871530.bugzilla.mozilla.org/attachment.cgi?id=750657 (was added3d (good), will be 869b878 (bad)).
 
-### Option 3 - Using MXR
-- If you know it was good in the Beta or Aurora branch, get the bad commit ID from MXR. Find the line with 'PDFJS.build = ' and copy the value in the single quotes, e.g., 4e83123.
-
-Aurora: http://mxr.mozilla.org/mozilla-aurora/source/browser/extensions/pdfjs/content/build/pdf.js#25
-
-Beta: http://mxr.mozilla.org/mozilla-beta/source/browser/extensions/pdfjs/content/build/pdf.js#25
+### Using DXR
+-f you know it was good in the Beta branch, get the bad commit ID from DXR. Find the line with `PDFJS.build =` and copy the value in the single quotes, for example `4e83123`. You can find PDF.js on DXR at http://dxr.mozilla.org/mozilla-beta/source/browser/extensions/pdfjs/content/build/pdf.js.
 
 ## Verify the working version
-- `git checkout <commit ID that you found above>`
-- Full refresh (CTRL + Shift + R) Firefox and verify that the PDF is no longer broken
-- Mark it as good with `git bisect good`
+- Run `git checkout <commit ID that you found above>`.
+- Do a full refresh (CTRL + Shift + R) Firefox and verify that rendering of the PDF is no longer broken.
+- Mark it as good with `git bisect good`.
 
 ## Continue bisecting
-- Full refresh (CTRL + Shift + R) of the viewer in Firefox
-- If the current version works, mark it using `git bisect good`
-- If the current version does not work, mark it using `git bisect bad`
-- Repeat the steps above until it converges to a single commit
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+- Do a full refresh (CTRL + Shift + R) of the viewer in Firefox.
+- If the current version works, mark it using `git bisect good`.
+- If the current version does not work, mark it using `git bisect bad`.
+- Repeat the steps above until it converges to a single commit.
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