feat: add flags for config fields

[technicallyty]

• adds flags to edit parts of the oracle config
• updates docs with new flags

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 40 lines in your changes missing coverage. Please review.

Project coverage is 56.32%. Comparing base (9f85f7f) to head (9f891fe).

Files	Patch %	Lines
cmd/slinky/main.go	0.00%	40 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #625      +/-   ##
==========================================
- Coverage   56.49%   56.32%   -0.18%     
==========================================
  Files         250      250              
  Lines       13068    13108      +40     
==========================================
  Hits         7383     7383              
- Misses       4977     5017      +40     
  Partials      708      708              

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[aljo242]

lgtm just some annoying lint stuff

[technicallyty]

CI is failing for unrelated reason, gonna merge dis