fixed deploy.md

Author: tanapl

docs/deploy_en.md

@@ -100,6 +100,8 @@ Use `yarn upload:prd` when deploying to the mainnet.
 
 ## 4. Setup and Deploy on Vercel
 
+NOTE: When deploying on Vercel, please be aware that using the `hobby` plan may result in a timeout and failure during proof generation. Therefore, it is recommended to use the `pro` plan (a paid plan).
+
 ### 4.1 Create a New Project
 
 After creating an account on Vercel, go to the new project creation screen by selecting `Add New`, then `Project`.

docs/deploy_jp.md

@@ -85,6 +85,8 @@ $ yarn verify --network mumbai <address>
 
 ## 4. Setup and Deploy on Vercel
 
+注意：Vercelにデプロイした際、`hobby`プランではproof生成時にタイムアウトとなり処理が失敗する可能性がありますので、`pro`プラン（課金プラン）の使用をお勧めします。
+
 ### 4.1 Create new project
 
 Vercel でアカウント作成したら、`Add New`、`Project`で新規プロジェクト作成画面に入ってください。