Merge PR cosmos#528: Correct typos in the README

Signed-off-by: storyicon <[email protected]>

README.md

@@ -302,17 +302,17 @@ $ rly q bal ibc-1
 
 # Then send some tokens between the chains
 $ rly tx transfer ibc-0 ibc-1 1000000samoleans $(rly chains address ibc-1)
-$ rly tx relay demo -d
-$ rly tx acks demo -d
+$ rly tx relay-pkts demo -d
+$ rly tx relay-acks demo -d
 
 # See that the transfer has completed
 $ rly q bal ibc-0
 $ rly q bal ibc-1
 
 # Send the tokens back to the account on ibc-0
 $ rly tx transfer ibc-1 ibc-0 1000000ibc/27A6394C3F9FF9C9DCF5DFFADF9BB5FE9A37C7E92B006199894CF1824DF9AC7C $(rly chains addr ibc-0)
-$ rly tx relay demo -d
-$ rly tx acks demo -d
+$ rly tx relay-pkts demo -d
+$ rly tx relay-acks demo -d
 
 # See that the return trip has completed
 $ rly q bal ibc-0