experimental/documentation/gerrit: authentication

NOTRY=true
Change-Id: I8d4f86848dcc37bcc0aead3700969ea4df6417db
Reviewed-on: https://skia-review.googlesource.com/59762
Reviewed-by: Hal Canary <halcanary@google.com>
Commit-Queue: Hal Canary <halcanary@google.com>

experimental/documentation/gerrit.md

@@ -1,7 +1,7 @@
 Using Gerrit without git-cl
 ===========================
 
-setup
+Setup
 -----
 
 The following must be executed within the Skia source repository.
@@ -14,15 +14,22 @@ identify which review a change applies to.
       'https://gerrit-review.googlesource.com/tools/hooks/commit-msg'
     chmod +x "$(git rev-parse --git-dir)/hooks/commit-msg"
 
-If you aquired Skia from a mirror (such as github), you need to change the
-`origin` remote to point to point to googlesource.  Advanvced uses will note
+If you acquired Skia from a mirror (such as github), you need to change the
+`origin` remote to point to point to googlesource.  Advanced uses will note
 that there is nothing special about the string `origin` and that you could call
 this remote anything you want, as long as you use that name for `get push`.
 
     git remote set-url origin 'https://skia.googlesource.com/skia.git'
 
 
-creating a change
+Authentication
+--------------
+
+Go to [skia.googlesource.com/new-password](https://skia.googlesource.com/new-password)
+and follow the instructions.
+
+
+Creating a Change
 -----------------
 
 1.  Create a topic branch
@@ -61,7 +68,7 @@ creating a change
     [Gerrit Upload Documentation](https://gerrit-review.googlesource.com/Documentation/user-upload.html)
 
 
-updating a change
+Updating a Change
 -----------------
 
 
@@ -87,7 +94,7 @@ updating a change
     The title of this patch set will be "this is the patch set comment message".
 
 
-scripting
+Scripting
 ---------
 
 You may want to make git aliases for common tasks: