Updated how to demo quad.

documentation/how_to_demo.md

@@ -28,17 +28,18 @@ password: `microcart`
 
 Navigate to the ground station folder in a Terminal. 
 ```bash
-$ cd {project_root}/groundStation
-$ ls
+$ cdsenior
 BackEnd  Cli  logs  Makefile  obj  README.md  src  ucart.socket (or something like that)
 ```
 
-If the project hasn't been built in a while, re-make the project:
+If this is the first time using the ground station after cloning, you need to make VRPN.
+From the `groundStation` folder:
 ```bash
 make vrpn
-make
 ```
 
+To make the actual ground station program, e.g. if there have been any changes, run `make` from the `groundStation` folder.
+
 ## Setup Transmitter
 The RC transmitter is used to manually control the quad.
 1. Ensure the transmitter has the following state before turning it on:
@@ -47,8 +48,10 @@ The RC transmitter is used to manually control the quad.
   - Throttle is set to the lowest position
 2. Turn on the transmitter.
 
-## Setup Quadcopter
+## Copy Boot Image
+To obtain an SD card image, navigate to the desired tag in GitLab (`team_17-16_demo`) and download the desired boot image. Copy it to an SD card, and rename it to `BOOT.bin`, which is the default filename for the Zybo to boot from.
 
+## Setup Quadcopter
 This section assumes the quad already has a prepared boot image inserted into the SD card port and that a properly charged Li-Po battery is ready for use.
 
 0. Prequisites