Update source/docs/casper/resources/moving-to-casper.md

Co-authored-by: Iulia Popescu <[email protected]>

source/docs/casper/resources/moving-to-casper.md

@@ -267,7 +267,7 @@ let uref: URef = runtime::get_key(Key_Name)
 
 Use the `get_key` function to retrieve the desired session argument by specifying the key's name.
 
-If you are uncertain, how to use the `get_key` function to obtain a specific session argument, check how to [write a basic smart contract on Casper](../developers/writing-onchain-code/simple-contract.md).
+If you are uncertain how to use the `get_key` function to obtain a specific session argument, check how to [write a basic smart contract on Casper](../developers/writing-onchain-code/simple-contract.md).
 
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