fix(ois) Add gap between text and images (#480)

pages/home/oracle-integrity-staking/reward-examples.mdx

@@ -20,6 +20,7 @@ NOTE: All the symbols used in the examples are explained in the [Mathematical Re
 
 This example takes the case of one pool where the pool has stake from only the publisher.
 
+<br />
 <DualModeImage
   darkSrc={OIS_Rewards_Example_Dark_1}
   lightSrc={OIS_Rewards_Example_Light_1}
@@ -49,6 +50,7 @@ $$
 
 This example takes the case where the pool has stake from both the publisher and the delegator.
 
+<br />
 <DualModeImage
   darkSrc={OIS_Rewards_Example_Dark_2}
   lightSrc={OIS_Rewards_Example_Light_2}
@@ -78,6 +80,7 @@ $$
 
 This example takes the case where the combined stake of both the publisher and the delegator exceeds the cap.
 
+<br />
 <DualModeImage
   darkSrc={OIS_Rewards_Example_Dark_3}
   lightSrc={OIS_Rewards_Example_Light_3}
@@ -107,6 +110,7 @@ $$
 
 This example demonstrates how the delegation fee affect the reward distribution between the publisher and the delegator.
 
+<br />
 <DualModeImage
   darkSrc={OIS_Rewards_Example_Dark_4}
   lightSrc={OIS_Rewards_Example_Light_4}