Add missing new line before closing code-block

src/strings/agent.rs

@@ -44,7 +44,7 @@ pub fn not_allowed_to_manage_static_agents() -> String {
 
 pub fn configuration_does_not_result_in_a_working_agent(err: anyhow::Error) -> String {
     format!(
-        "The provided configuration does not result in a working agent. The following error was encountered when trying to talk to the agent API:\n```\n{}```",
+        "The provided configuration does not result in a working agent. The following error was encountered when trying to talk to the agent API:\n```\n{}\n```",
         err,
     )
 }