Update toolkit.md

Author: vivian1912

docs/using_javatron/toolkit.md

@@ -113,7 +113,7 @@ $ nohup java -Xms9G -Xmx9G -XX:ReservedCodeCacheSize=256m \
                 -XX:+UseCMSInitiatingOccupancyOnly  -XX:CMSInitiatingOccupancyFraction=70 \
                 -jar FullNode.jar -c main_net_config.conf >> start.log 2>&1 &
 
-# Super representitive's FullNode
+# Super representative's FullNode
 $ nohup java -Xms9G -Xmx9G -XX:ReservedCodeCacheSize=256m \
                -XX:MetaspaceSize=256m -XX:MaxMetaspaceSize=512m \
                -XX:MaxDirectMemorySize=1G -XX:+PrintGCDetails \