Improve checkout/clone process

* Add full wordflow for ubuntu
* Add missing remote of upstream

Signed-off-by: Ryan Friedman <ryanfriedman5410+github@gmail.com>

README.md

@@ -2,8 +2,8 @@
 
 ## Summary
 
-This is a website that generates a downloadable custom ArduPilot firmware, based on user selection.  
-Website: https://custom.ardupilot.org  
+This is a website that generates a downloadable custom ArduPilot firmware, based on user selection.
+Website: https://custom.ardupilot.org
 Blog post: https://discuss.ardupilot.org/t/gsoc-2021-custom-firmware-builder/74946
 
 ## How to build the server locally for testing
@@ -12,38 +12,70 @@ It is expected that you have an environment where ArduPilot can be built. Otherw
 
 1. Fork and Clone the ArduPilot/CustomBuild repository
 
-2. In the directory containg the CustomBuild repo just cloned, create a /base subdirectory and change to that directory.
+2. In the directory containing the CustomBuild repo just cloned, create a /base subdirectory and change to that directory.
 
-3. Clone a fork of the ArduPilot/ardupilot repository. The structure should appear similar to that below:
+3. Clone a fork of the ArduPilot/ardupilot repository.
 
+### Detailed Instructions for Ubuntu
+
+For example, here are the commands for Ubuntu.
+
+If not already set up, [configure your Git username](https://git-scm.com/docs/git-config#Documentation/git-config.txt-credentialusername):
+Substitute `your-github-account` with your Github username.
+```
+git config --global credential.username your-github-account
+```
+
+Next, clone the repositories:
+```bash
+git config credential.username your-github-account
+cd ~
+git clone git@github.com:$(git config credential.username)/CustomBuild.git
+git clone --depth 1 git@github.com:$(git config credential.username)/ardupilot.git base/ardupilot
+```
+
+Finally, add the upstream ArduPilot to your remotes.
+```bash
+git -C base/ardupilot remote add upstream git@github.com:ardupilot/ardupilot.git
+git -C base/ardupilot fetch --depth 1 upstream
+```
 
 ### Directory structure
-default directory structure is as follows
+
+The default directory structure is as follows:
 ```
 /home/<username>
 -CustomBuild
 -base
 --ardupilot
 ```
-### Install Flask
-```
-python3 -m pip install --user -U flask
+
+
+### Install Dependencies
+
+```bash
+cd ~/CustomBuild
+python3 -m pip install --user --upgrade --requirement requirements.txt
 ```
-Use `--basedir` to adjust the base directory, the default one is `base`.
 
 ### Running
+
 To run, in the CustomBuild directory execute the following command:
 
-```
+```bash
+cd ~/CustomBuild
 ./app.py
 ```
+
+Use `--basedir` to adjust the base directory. The default one is `base`.
+
 Once running, you will be given a link to a local host port in which the interface is displayed for the build server. It can be run at this point. Output will NOT be accessible via the interface buttons for build directory. Builds are stored in the base/builds subdirectory
 
 ### For Apache web server on Ubuntu with WSGI
 To create a full server with network access:
 
 * Install mod_wsgi for python 3:
-```
+```bash
 sudo apt-get install apache2 libapache2-mod-wsgi-py3 python3 python3-pip
 ```
 
@@ -56,19 +88,19 @@ sudo apt-get install apache2 libapache2-mod-wsgi-py3 python3 python3-pip
 * Edit the file as necessary for your use case
 
 * Enable the file:
-```
+```bash
 sudo a2ensite CustomBuild.conf
 ```
 * To restart Apache:
-```
+```bash
 sudo apache2ctl graceful
 ```
 * To stop Apache:
-```
+```bash
 sudo apache2ctl stop
 ```
 * To start Apache:
-```
+```bash
 sudo apache2ctl start
 ```
 Webpage: 127.0.0.1

requirements.txt

@@ -0,0 +1,2 @@
+flask
+requests