Add prerequisites section for MTCDT to support LBS

[i3mSuperMan]

Summary

Updating the prerequisites section to the current documentation of the Multitech Conduit AEP gateway connecting with the LoRa Basics Station(LBS) to TTS.
Ref: https://www.thethingsindustries.com/docs/gateways/multitechconduit/

Changes

• Added the prerequisites section in the current documentation

Checklist

• Scope: The referenced issue is addressed, there are no unrelated changes.
• Run Locally: Verified that the docs build using make server, posted screenshots, verified external links. Test with HUGO_PARAMS_SEARCH_ENABLED=true if style changes will affect the search bar.
• New Features Marked: Documentation for new features is marked using the new-in-version shortcode, according to the guidelines in CONTRIBUTING.
• Style Guidelines: Documentation obeys style guidelines in CONTRIBUTING.
• Commits: Commit messages follow guidelines in CONTRIBUTING, there are no fixup commits left.