Fix the bug of review doc

Author: noah

docs/concepts/review.md

@@ -4,7 +4,7 @@ Gitploy has the review to require at least one approval for the deployment. You
 
 ## Review process
 
-1. First, to enable review, you must configure like the below:
+1\. First, to enable review, you must configure like the below:
 
 ```yaml
 envs:
@@ -15,10 +15,10 @@ envs:
       reviewers: ["YOUR_LOGIN"]
 ```
 
-2. When the user deploys, Gitploy request a review to reviewers.
+2\. When the user deploys, Gitploy request a review to reviewers.
 
 ![review](../images/deploy-with-review.png)
 
-3. After deploy, reviewers check what is changes and review the deployment. 
+3\. After deploy, reviewers check what is changes and review the deployment. 
 
 ![review](../images/review.png)