diff --git a/README.md b/README.md
index 6913c7f..7762a9b 100644
--- a/README.md
+++ b/README.md
@@ -1,24 +1,28 @@
 ## About
 
 portzap is a utility for staying up to date with the
-[HardenedBSD ports tree](https://hardenedbsd.org).
-The utility stores a transient copy of the ports tree in `/home/_portzap/ports/`.
-The transient copy can be created, and updated by an unprivileged user account
-who is a member of the `_portzap` group. The transient copy can then be installed
-into the `/usr/ports/` directory by root.
+HardenedBSD ports tree. It's designed to make it easy
+for unprivileged users who are members of the `_portzap`
+group to create and update a transient copy of the ports
+tree, which can then be installed into the `/usr/ports/`
+directory by the root user.
+
+Once the initial installation is done, future updates are
+incremental, which means that portzap will only add or update
+ports that have changed since the last update.
 
 ## Usage
 
 * `portzap clone` <br>
-  This command clones HardenedBSD's ports tree into `/home/_portzap/ports/`.
+  Clones HardenedBSD's ports tree into `/home/_portzap/ports/`.
 
 * `portzap pull` <br>
-  This command pulls updates into `/home/_portzap/ports/`.
+  Pulls updates into `/home/_portzap/ports/`.
 
 * `portzap install` <br>
-  This command should be run as root. <br>
-  The command installs `/home/_portzap/ports/` into `/usr/ports/`. <br>
-  After the first installation, future installations try to save time by being incremental.
+  Installs `/home/_portzap/ports/` into `/usr/ports/`. <br>
+  After the first installation, future installations try to save time
+  by being incremental. Must be run by the root user.
 
 ## Install