Update documentation/cli/08_devnode.md

Co-authored-by: Alexander Kim <alexander@aleo.org>
Signed-off-by: Roy Rotstein <112157037+Roee-87@users.noreply.github.com>

Author: Roee-87

documentation/cli/08_devnode.md

@@ -114,7 +114,7 @@ leo execute <TRANSITION> <INPUTS> --skip-execute-proof --endpoint http://localho
 
 `--skip-execute-proof` skips generating the execution proof. Without it, execution will still work but will be significantly slower.
 
-**Upgrading a program**
+### **Upgrading a Program**
 
 ```bash
 leo upgrade --skip-deploy-certificate --endpoint http://localhost:3030