Update buffer.md

Author: DeveloperTryingToCodeLikeOtherOfThem

docs/reference/buffer/buffer.md

@@ -40,9 +40,9 @@ for storing data without overflowing.
 
  breaks  buffer into pieces, none exceeding  specified size. 
 
- Buffer.isReadOnly() reads if 
+ Buffer.isReadOnly() 
 
- buffer cannot be modified, orwise it returns false
+ reads if the buffer cannot be modified, otherwise it returns false
 
  Buffer.hash(bits: int32)