docs: fixed typo (#2680).

Author: ricmoo

docs.wrm/api/providers/types.wrm

@@ -300,7 +300,7 @@ transaction was mined.
 
 _property: transaction.raw => string<[[DataHexString]]>
 The serialized transaction. This may be null as some backends do not
-rpopulate it. If this is required, it can be computed from a **TransactionResponse**
+populate it. If this is required, it can be computed from a **TransactionResponse**
 object using [this cookbook recipe](cookbook--compute-raw-transaction).
 
 _property: transaction.wait([ confirms = 1 ]) => Promise<[[providers-TransactionReceipt]]>