changed confusing lines in "Dictator and Lieutenants Workflow"

changed a step and a line that seemed a bit confusing and didn't match
with the illustration.

Author: Kaartic Sivaraam

book/05-distributed-git/sections/distributed-workflows.asc

@@ -66,11 +66,11 @@ This is a variant of a multiple-repository workflow.
 It's generally used by huge projects with hundreds of collaborators; one famous example is the Linux kernel.
 Various integration managers are in charge of certain parts of the repository; they're called lieutenants.
 All the lieutenants have one integration manager known as the benevolent dictator.
-The benevolent dictator's repository serves as the reference repository from which all the collaborators need to pull.
+The benevolent dictator pushes from his directory to a reference repository from which all the collaborators need to pull.
 The process works like this (see <<wfdiag_c>>):
 
 1.  Regular developers work on their topic branch and rebase their work on top of `master`.
-    The `master` branch is that of the dictator.
+    The `master` branch is that of the reference directory to which the dictator pushes.
 2.  Lieutenants merge the developers' topic branches into their `master` branch.
 3.  The dictator merges the lieutenants' `master` branches into the dictator's `master` branch.
 4.  The dictator pushes their `master` to the reference repository so the other developers can rebase on it.