Update README.md

Author: clcain

README.md

@@ -4,7 +4,13 @@ This software is an nginx HTTPS reverse proxy with support for Let's Encrypt. It
 
 ## Installation
 
-To start using this software, clone this repository and then run `docker-compose up`. Then, follow the instructions in the next two sections to get an HTTPS certificate set up and to configure the redirect for your domain.
+To start using this software, clone this repository and then run `docker-compose up`. Then, follow the instructions in the next two sections to get an HTTPS certificate set up and to configure the redirect for your domain. You must have Docker and docker-compose installed.
+
+## Configuration
+
+You will want to obtain the certificate from Let's Encrypt using the command above before adding your site's configuration.
+
+To set up the HTTPS reverse proxy for your site, copy the [example configuration file](nginx-proxy/sites/enabled/.example.com) from `nginx-proxy/sites/enabled` to a new file in the same directory. Edit the certificate location to match your domain name.
 
 ## Obtaining new certificates from Let's Encrypt
 ```
@@ -16,11 +22,18 @@ This command may be run on the host machine through `docker exec` as follows:
 docker exec -ti nginx-https-proxy_app_1 certbot certonly --webroot -w /var/www/letsencrypt/ -d example.com
 ```
 
-## Configuration
+The helper script `gen-cert.sh` will run the above command inside the nginx Docker container for you.
+```
+bash gen-cert.sh [domain name]
+```
 
-You will want to obtain the certificate from Let's Encrypt using the command above before adding your site's configuration.
+## Creating a site configuration
 
-To set up the HTTPS reverse proxy for your site, copy the [example configuration file](nginx-proxy/sites/enabled/.example.com) from `nginx-proxy/sites/enabled` to a new file in the same directory. Edit the certificate location to match your domain name.
+In `ngxin/sites-enabled`, copy `.example.com` into a new file, named to match the domain you would like to serve. Modify the contents of the example file to fit your domain.
+
+## Launching the service
+
+Running the service is as easy as `docker-compose up` (or `docker-compose up --build` if you recently changed the `sites-enabled` directory. You may also run `bash start.sh` to start the service for you.
 
 ## Notes