fix missing forward slash in route

Author: ryanwaits

content/docs/stacks/clarinet/guides/create-deployment-plans.mdx

@@ -233,7 +233,7 @@ This cBTC smart contract application has a [devnet deployment plan](https://gith
 <Cards>
   <SecondaryCard
     icon={<Clarinet />}
-    href="stacks/clarinet/guides/run-a-local-devnet"
+    href="/stacks/clarinet/guides/run-a-local-devnet"
     title="Run a local devnet"
     description="Learn how to run a local devnet."
     tag='Clarinet'