add stub file for new CLI cookbook page (#2295)

Author: ElliotFriend

docs/tools/cli/cookbook/contract-invoke-arguments.mdx

@@ -0,0 +1,7 @@
+---
+title: "Contract Invoke: Argument Types"
+hide_table_of_contents: true
+description: How to pass each argument type when invoking a Stellar smart contract using the CLI
+---
+
+Stub file: the real file is generated in build time by `yarn stellar-cli:build`.

routes.txt

@@ -721,6 +721,7 @@
 /docs/tools/cli/cookbook
 /docs/tools/cli/cookbook/asset-management
 /docs/tools/cli/cookbook/contract-build-meta
+/docs/tools/cli/cookbook/contract-invoke-arguments
 /docs/tools/cli/cookbook/contract-lifecycle
 /docs/tools/cli/cookbook/deploy-contract
 /docs/tools/cli/cookbook/deploy-stellar-asset-contract