fix: make comment ab verifying sigs more specific

Co-authored-by: Steven Luscher <steveluscher@users.noreply.github.com>

web3.js/src/transaction/legacy.ts

@@ -726,7 +726,7 @@ export class Transaction {
   }
 
   /**
-   * Verify signatures of a complete Transaction
+   * Verify signatures of a Transaction
    * Optional parameter specifies if we're expecting a fully signed Transaction or a partially signed one.
    * If no boolean is provided, we expect a fully signed Transaction by default.
    */