Fix Directory Hardcodes, Documentation Improvements (#10)

* Improve the main crontab example.

* Remove /opt/Docker hardcodes.

* Add periods.

* Improve readability.

* Begin removing hardcoded path from the bin files.

* Update main README to no longer enforce hardcoded path. Other improvements.

* Add the load folder with a README.

* Add load folder and its README.

* Improve reverse proxy text files.

* Switch to tabs.

* Update all scripts for tabs, DOCKER_HOME, and comments.

* Let users know the directory choice is optional.

* Fix environment file.

* Add more details for the reverse proxy load balancing.

* Don't actually listen for postgres.

* Fix comments on source file.

* Be more explicit on the pathing.

Config/DynamicDNS/README.md

@@ -13,13 +13,15 @@ product's self-built solutions can be found below.
     git clone https://github.com/Hyperling/docker $PROJECT_DIR
     ```
 
-1. Add your Afraid DNS account key to $PROJECT_DIR/Config/DynamicDNS/private.key
-Account key can be found [here](https://freedns.afraid.org/dynamic/v2/).
+1. Add your user key to `$PROJECT_DIR/Config/DynamicDNS/private.key`. The key can
+be found on [this page](https://freedns.afraid.org/dynamic/v2/) after signing in.
 
 1. Add this line to the system's cron scheduling using a command like `crontab -e`.
+The sleep waits anywhere from 0 to 55 minutes due to the
+[Random/10](https://tldp.org/LDP/abs/html/randomvar.html).
 
     ```
-    5 * * * * $PROJECT_DIR/Config/DynamicDNS/update_dns.sh
+    @hourly sleep $(( $RANDOM / 10 )); $PROJECT_DIR/Config/DynamicDNS/update_dns.sh
     ```
 
 ### TESTING
@@ -61,6 +63,6 @@ and preferably add a 30-45 second sleep so that you do not hit near :00 seconds.
 
 ### No-IP.org Instructions
 
-Please see this guide on installing the Dynamic Update Client (DUC).
+Please see the official guide on installing the Dynamic Update Client (DUC).
 
 https://my.noip.com/dynamic-dns/duc