Adding screenshot, updating readme

README.md

 # Nitrogen Desktop Experience (NDE)
 # Nitrogen Desktop Experience (NDE)
+
+![screenshot](screenshots/screenshot1.png)
+
 This is a project I've had ideas about for a few years.  The end goal is to create a DE
 This is a project I've had ideas about for a few years.  The end goal is to create a DE
 (Desktop Environment) that can alter itself at runtime using various desktop agents which
 (Desktop Environment) that can alter itself at runtime using various desktop agents which
 dictate the look and feel.
 dictate the look and feel.
@@ -25,10 +28,35 @@ None yet.  :crying_cat_face:
 + [`x11/libX11`](https://www.freshports.org/x11/libX11/)
 + [`x11/libX11`](https://www.freshports.org/x11/libX11/)
 + [`x11/xproto`](https://www.freshports.org/x11/xproto/)
 + [`x11/xproto`](https://www.freshports.org/x11/xproto/)
 + [`devel/cmake`](https://www.freshports.org/devel/cmake/)
 + [`devel/cmake`](https://www.freshports.org/devel/cmake/)
-+ [`devel/cmake-modules`](https://www.freshports.org/devel/cmake-modules/)
++ [`devel/cmake-modules`](https://www.freshports.org/devel/cmake-modules/) (if this port is not available, then it has been merged with [`devel/cmake`](https://www.freshports.org/devel/cmake/))
 + [`devel/boehm-gc`](https://www.freshports.org/devel/boehm-gc/)
 + [`devel/boehm-gc`](https://www.freshports.org/devel/boehm-gc/)
 + [`devel/boehm-gc-threaded`](https://www.freshports.org/devel/boehm-gc-threaded/)
 + [`devel/boehm-gc-threaded`](https://www.freshports.org/devel/boehm-gc-threaded/)
 
 
 ---
 ---
 ## Misc Tooling
 ## Misc Tooling
 + [`devel/git`](https://www.freshports.org/devel/git/) **or** [`devel/git-gui`](https://www.freshports.org/devel/git-gui/)
 + [`devel/git`](https://www.freshports.org/devel/git/) **or** [`devel/git-gui`](https://www.freshports.org/devel/git-gui/)
+
+---
+## Building the NDE
+It's easy to build Nitrogen Desktop Experience.
+
+**Checkout**
+```console
+$ git clone https://felinewith.me/LadySerenaKitty/nitrogen.git
+$ cd nitrogen
+```
+
+**Prep for build**
+```console
+$ cmake .
+```
+
+**Build it!**
+```console
+$ make
+```
+
+**Test**
+```console
+$ ./test_Nitrogen.sh
+```

xinitrc

 xsetroot -solid grey &
 xsetroot -solid grey &
-xclock &
-sleep 2 && xterm &
+xterm &
 
 
 exec src/NitroWin/build/bin/NitroWin
 exec src/NitroWin/build/bin/NitroWin