Fix typos

[pgrimaud]

Hey,

This huge PR will fix :

• 1 typo in doc/guides/FeatureGuideForSolidity.md
• 1 typo in doc/guides/FeatureGuideForYul.md
• 1 typo in test/solidity/compilationTests/corion/ico.sol
• 1 typo in test/solidity/compilationTests/gnosis/MarketMakers/LMSRMarketMaker.sol
• 1 typo in test/solidity/diag/enum.sol
• 1 typo in test/solidity/diag/invalidName.sol
• 1 typo in test/solidity/diag/multipleFallbacks.sol
• 4 typos in utils/json/json.hpp
• 1 typo in utils/unittests/catch.hpp

Ciao! :robot:

[juntao]

Thank you @pgrimaud !