fix grammar and spelling errors (#5499)

Co-authored-by: Hadrien Croubois <hadrien.croubois@gmail.com>

audits/2017-03.md

@@ -109,7 +109,7 @@ It would be nice to see how many payments are pending. This would imply a bit of
 
 ## Shareable Contract
 
-We do not believe the `Shareable.sol` contract is ready for primetime. It is missing functions, and as written may be vulnerable to a reordering attack -- an attack in which a miner or other party "racing" with a smart contract participant inserts their own information into a list or mapping.
+We do not believe the `Shareable.sol` contract is ready for prime time. It is missing functions, and as written may be vulnerable to a reordering attack -- an attack in which a miner or other party "racing" with a smart contract participant inserts their own information into a list or mapping.
 
 The confirmation and revocation code needs to be looked over with a very careful eye imagining extraordinarily bad behavior by shared owners before this contract can be called safe.
 

contracts/token/ERC6909/README.adoc

@@ -5,7 +5,7 @@ NOTE: This document is better viewed at https://docs.openzeppelin.com/contracts/
 
 This set of interfaces and contracts are all related to the https://eips.ethereum.org/EIPS/eip-6909[ERC-6909 Minimal Multi-Token Interface].
 
-The ERC consists of four interfaces which fulfill different roles--the interfaces are as follows:
+The ERC consists of four interfaces which fulfill different roles - the interfaces are as follows:
 
 . {IERC6909}: Base interface for a vanilla ERC6909 token.
 . {IERC6909ContentURI}: Extends the base interface and adds content URI (contract and token level) functionality.
@@ -24,4 +24,4 @@ Implementations are provided for each of the 4 interfaces defined in the ERC.
 
 {{ERC6909Metadata}}
 
-{{ERC6909TokenSupply}}
+{{ERC6909TokenSupply}}

contracts/utils/structs/CircularBuffer.sol

@@ -62,7 +62,7 @@ library CircularBuffer {
     }
 
     /**
-     * @dev Initialize a new CircularBuffer of given size.
+     * @dev Initialize a new CircularBuffer of a given size.
      *
      * If the CircularBuffer was already setup and used, calling that function again will reset it to a blank state.
      *