README: update

README.md

@@ -1,60 +1,50 @@
 ## About
 
-portzap is designed to allow unprivileged users who are members
-of the `_portzap` group to create and update a transient copy of
-the HardenedBSD ports tree, which can then be installed into the
-`/usr/ports/` directory by root.  Once the initial installation
-is complete, future updates are incremental, which means that portzap
-will only add, remove or update ports that have changed since the last
-update.
+portzap is a utility that manages a local copy of the
+[hardenedbsd ports tree](https://git.hardenedbsd.org/hardenedbsd/ports),
 
-## Usage
+## Examples
 
-**Commands**
+**CLI**
 
-* __portzap clone__ <br>
-  Clones the ports tree into `/home/_portzap/ports/`.
+    # Clones the ports tree into "/home/_portzap/ports/"
+    $ portzap clone
 
-* __portzap pull__ <br>
-  Pulls updates into `/home/_portzap/ports/`.
+    # Pulls updates into "/home/_portzap/ports/"
+    $ portzap pull
 
-* __portzap install__ <br>
-  Installs `/home/_portzap/ports/` into `/usr/ports/`. <br>
+    # Installs "/home/_portzap/ports/" into "/usr/ports/"
+    # portzap install
 
-**Environment variables**
+**Environment**
 
-* __$PORTZAP_PORTS_URL__
-  The URL of a git repository. <br>
-  Defaults to https://git.hardenedbsd.org/hardenedbsd/ports.git.
+    # The URL of a git repository
+    # Defaults to https://git.hardenedbsd.org/hardenedbsd/ports.git
+    export PORTZAP_PORTS_URL=https://github.com/HardenedBSD/ports
+
+    # The directory where the ports collection will be installed
+    # Defaults to "/usr/ports/"
+    export PORTZAP_PORTS_DIR=/path/to/ports
 
 ## Install
 
-portzap can be installed through git, or via a port. <br>
-The port makes installation, and deinstallation easier.
-
-__Port__ <br>
-
-See [0x1eef/ports/freebsd/hardenedbsd/portzap](https://git.hardenedbsd.org/0x1eef/ports/-/tree/main/freebsd/hardenedbsd/portzap).
-
-__Git__ <br>
-
 ```
-git clone https://git.hardenedbsd.org/0x1eef/portzap.git
-cd portzap
-cp -R bin /usr/local/
-cp -R libexec /usr/local/
-pw useradd -n _portzap \
+$ git clone https://github.com/0x1eef/portzap.git
+$ cd portzap
+# cp -R bin /usr/local/
+# cp -R libexec /usr/local/
+# pw useradd -n _portzap \
            -c "portzap utility user" \
            -m \
            -s /sbin/nologin
-pw groupmod -n _portzap -m <user>
+# pw groupmod -n _portzap -m <user>
 ```
 
 ## Sources
 
-* [Source code (git.hardenedbsd.org)](https://git.hardenedbsd.org/0x1eef/portzap)
-* [Source code (GitHub)](https://github.com/0x1eef/portzap)
-* [Source code (GitLab)](https://gitlab.com/0x1eef/portzap)
+* [GitHub](https://github.com/0x1eef/portzap)
+* [GitLab](https://gitlab.com/0x1eef/portzap)
+* [git.hardenedbsd.org](https://git.hardenedbsd.org/0x1eef/portzap)
 
 ## License