[BUG] docker-compose.yml environment variables do not override ini requirements

Describe the bug When a user has more than the expected maximum number of services (in my case 3 for Sonarr and Radarr), Varken will throw an exception that the expected section does not exist in the ini file.

To Reproduce Steps to reproduce the behavior:

1. Edit docker-compose.yml to include 3 of the same service for the *arrs
2. Pull down Varken
3. Run Varken

Expected behavior Expected Varken to actually override the requirement of the ini file, since everything has already been configured in the environment variables for Varken.

Environment (please complete the following information):

• OS: Docker:Nightly
• Version: 9de2e8090a5451f519a8771f183d23a4180362457001705d63cd543a88102750

Additional context

2022-07-17 17:24:33 : DEBUG : iniparser : sonarr:8989 is a valid URL in module [sonarr-1].
2022-07-17 17:24:33 : DEBUG : iniparser : ********n.tld:8989 is a valid URL in module [sonarr-2].
Traceback (most recent call last):
  File "/app/Varken.py", line 92, in <module>
    CONFIG = INIParser(DATA_FOLDER)
  File "/app/varken/iniparser.py", line 29, in __init__
    self.rectify_ini()
  File "/app/varken/iniparser.py", line 138, in rectify_ini
    self.parse_opts()
  File "/app/varken/iniparser.py", line 181, in parse_opts
    url = self.url_check(env.get(f'VRKN_{envsection}_URL', self.config.get(section, 'url')),
  File "/usr/local/lib/python3.9/configparser.py", line 781, in get
    d = self._unify_values(section, vars)
  File "/usr/local/lib/python3.9/configparser.py", line 1149, in _unify_values
    raise NoSectionError(section) from None
configparser.NoSectionError: No section: 'sonarr-3'

[samwiseg0]

Removed.

[BRTPOB]

That’s fine, but the documentation needs to be clear because as of right now it states that you can do either one, and the ENV variables will override the ini, which is why I set it up this way in the first place.