docs: replace l16 with testnet

[CJ42]

No description provided.

[codecov-commenter]

Codecov Report

Merging #313 (cb9631b) into develop (122efa9) will increase coverage by 0.85%.
Report is 66 commits behind head on develop.
The diff coverage is 89.77%.

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@@             Coverage Diff             @@
##           develop     #313      +/-   ##
===========================================
+ Coverage    83.04%   83.89%   +0.85%     
===========================================
  Files           18       18              
  Lines          979     1124     +145     
  Branches       218      252      +34     
===========================================
+ Hits           813      943     +130     
- Misses          91       97       +6     
- Partials        75       84       +9     

Files	Coverage Δ
src/constants/constants.ts	100.00% <100.00%> (ø)
src/constants/interfaces.ts	100.00% <100.00%> (ø)
src/index.ts	77.22% <100.00%> (+0.22%)	⬆️
src/lib/detector.ts	96.00% <100.00%> (+8.50%)	⬆️
src/lib/getData.ts	89.79% <ø> (ø)
src/lib/provider-wrapper-utils.ts	88.88% <ø> (-0.59%)	⬇️
src/schemas/index.ts	100.00% <100.00%> (ø)
src/types/Method.ts	100.00% <100.00%> (ø)
src/lib/decodeMappingKey.ts	84.21% <60.00%> (-5.54%)	⬇️
src/provider/providerWrapper.ts	81.25% <90.00%> (-1.65%)	⬇️
... and 3 more

... and 4 files with indirect coverage changes

[CJ42]

Closed as done in #312