Update .agents/skills/okx-growth-competition/references/cli-reference.md

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
Signed-off-by: Dargon789 <64915515+Dargon789@users.noreply.github.com>

Author: Dargon789

.agents/skills/okx-growth-competition/references/cli-reference.md

@@ -183,8 +183,6 @@ When `--activity-id` is omitted, the CLI calls `competition list --status 2` fir
 
 Register for a competition. **Requires wallet login.**
 
-```
-onchainos competition join --activity-id <id> --evm-wallet <evm_addr> --sol-wallet <sol_addr>
 ```
 onchainos competition join --activity-id <id> --evm-wallet <evm_addr> --sol-wallet <sol_addr> --chain-index <chain_id>
 **API**: `POST /priapi/v5/wallet/agentic/competition/join`