chore(readme): fix repeated word in x/incentives README (#1102)

x/incentives/README.md

@@ -10,7 +10,7 @@ Anyone can create gauge and add rewards to the gauge, there is no way to take it
 
 There are two kinds of `gauges`, perpetual and non-perpetual ones.
 
-- Non perpetual ones get removed from active queue after the the distribution period finish but perpetual ones persist.
+- Non perpetual ones get removed from active queue after the distribution period finish but perpetual ones persist.
 - For non perpetual ones, they distribute the tokens equally per epoch during the `gauge` is in the active period.
 - For perpetual ones, it distribute all the tokens at a single time. Those gauges needs to be filled externally.