docs: 📝 Documentation added

docs/lib/utils/Counters.md

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+# Counters
+
+*buf0t9Modified from OpenZeppelin Contracts (https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/utils/Counters.sol)*
+
+> Counters
+
+Provides counters that can only be incremented, decrementedor reset.
+
+*Include with `using Counters for Counters.Counter;`*
+
+
+
+## Errors
+
+### DecOverflow
+
+```solidity
+error DecOverflow()
+```
+
+
+
+*0xce3a3d37*
+
+
+