Update docs/pos/how-to/smart-contracts/chainstack.md

Co-authored-by: Dra Murphy <149679879+kmurphypolygon@users.noreply.github.com>

Author: hsutaiyu

docs/pos/how-to/smart-contracts/chainstack.md

@@ -131,7 +131,7 @@ forge create HelloWorld --constructor-args "Hello" --contracts /root/foundry/src
 
     You can always check the contract's deployment on [Mumbai Polygonscan](https://mumbai.polygonscan.com/) using the newly-generated hash from the last step.
 
-## Test the Contract
+## Test the contract
 
 There is a `forge test` command in case you need to check whether the contract is working fine. Foundry provides many [options](https://book.getfoundry.sh/reference/forge/forge-test) (flags) for more specific tests. Learn more about writing tests, advanced testing and other features at [Foundry's documentation](https://book.getfoundry.sh/forge/tests).