chore: fix ffi docs

[xdustinface]

#725 was stale on merge and left the ffi docs in a bad state.

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📥 Commits

Reviewing files that changed from the base of the PR and between 871ce24 and 528cc81.

📒 Files selected for processing (1)

• key-wallet-ffi/FFI_API.md

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch chore/ffi-docs

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 71.27%. Comparing base (871ce24) to head (528cc81).

Additional details and impacted files

@@              Coverage Diff              @@
##           v0.42-dev     #737      +/-   ##
=============================================
+ Coverage      71.25%   71.27%   +0.02%     
=============================================
  Files            320      320              
  Lines          68788    68788              
=============================================
+ Hits           49012    49028      +16     
+ Misses         19776    19760      -16     

Flag	Coverage Δ
core	76.19% <ø> (ø)
ffi	46.05% <ø> (ø)
rpc	20.00% <ø> (ø)
spv	87.54% <ø> (+0.10%)	⬆️
wallet	70.00% <ø> (ø)
see 4 files with indirect coverage changes