Fix typo in log message.

Signed-off-by: Valeriy Vyrva <[email protected]>

[resolves #249]

src/main/java/io/r2dbc/h2/H2Connection.java

@@ -95,7 +95,7 @@ public Mono<Void> beginTransaction(TransactionDefinition definition) {
 
                 if (readOnly != null) {
                     logger.warn(TransactionDefinition.READ_ONLY + " + isn't supported in H2 at the transaction level. " +
-                        "You must set it on conenction URL. See http://www.h2database.com/html/features.html#read_only");
+                        "You must set it on the connection URL. See http://www.h2database.com/html/features.html#read_only");
                 }
 
                 return startTransaction;