tutorial: shorthand for remotes but show distributed nature of git

* Promiscous pull shows the distributed nature of git better.
* Add a new step after that to teach "remote add".
* Highlight that with the shorthand defined you will get
  remote tracking branches for free.
* Fix Alice's workflow.

Signed-off-by: Santi Béjar <sbejar@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>

Documentation/tutorial.txt

@@ -283,12 +283,10 @@ at /home/bob/myrepo.  She does this with:
 
 ------------------------------------------------
 $ cd /home/alice/project
-$ git remote add bob /home/bob/myrepo
+$ git pull /home/bob/myrepo master
-$ git pull bob master
 ------------------------------------------------
 
-First it adds the "remote" Bob's repository with the name "bob" and
+This merges the changes from Bob's "master" branch into Alice's
-then it merges the changes from Bob's "master" branch into Alice's
 current branch.  If Alice has made her own changes in the meantime,
 then she may need to manually fix any conflicts.  (Note that the
 "master" argument in the above command is actually unnecessary, as it
@@ -297,14 +295,27 @@ is the default.)
 The "pull" command thus performs two operations: it fetches changes
 from a remote branch, then merges them into the current branch.
 
-You can perform the first operation alone using the "git fetch"
+When you are working in a small closely knit group, it is not
-command without merging them with her own branch, using:
+unusual to interact with the same repository over and over
+again.  By defining 'remote' repository shorthand, you can make
+it easier:
+
+------------------------------------------------
+$ git remote add bob /home/bob/myrepo
+------------------------------------------------
+
+With this, you can perform the first operation alone using the
+"git fetch" command without merging them with her own branch,
+using:
 
 -------------------------------------
 $ git fetch bob
 -------------------------------------
 
-which fetches the changes from Bob's branches.  Then
+Unlike the longhand form, when Alice fetches from Bob using a
+remote repository shorthand set up with `git remote`, what was
+fetched is stored in a remote tracking branch, in this case
+`bob/master`.  So after this:
 
 -------------------------------------
 $ git log -p master..bob/master
@@ -313,28 +324,22 @@ $ git log -p master..bob/master
 shows a list of all the changes that Bob made since he branched from
 Alice's master branch.
 
-After examining those changes, and possibly fixing things, Alice
+After examining those changes, Alice
 could merge the changes into her master branch:
 
 -------------------------------------
-$ git checkout master
 $ git merge bob/master
 -------------------------------------
 
-The last command is a merge of the "bob/master" branch in Alice's
+This `merge` can also be done by 'pulling from her own remote
-own repository.
+tracking branch', like this:
-
-Alice could also perform both steps at once with:
 
 -------------------------------------
-$ git pull bob
+$ git pull . remotes/bob/master
 -------------------------------------
 
-This is just like the "git pull bob master" that we saw
+Note that git pull always merges into the current branch,
-before, except that it also stores the unmerged changes from bob's
+regardless of what else is given on the commandline.
-master branch in bob/master before merging them into Alice's
-current branch.  Note that git pull always merges into the current
-branch, regardless of what else is given on the commandline.
 
 Later, Bob can update his repo with Alice's latest changes using