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

@@ -48,7 +48,7 @@ leo devnode start [OPTIONS]
 | `--ledger-path` | `-l` | (in-memory) | Path for persistent ledger storage. If `-l` is given without a path, defaults to `./devnode` |
 | `--clean` | `-c` | `false` | Clear the ledger directory before starting. Requires `--ledger-path` |
 
-**Examples**
+### **Examples**
 
 ```bash
 # In-memory (ephemeral, no persistence)