fix: apply the suggestion from review

Signed-off-by: hlts2 <hiroto.funakoshi.hiroto@gmail.com>

docs/user/contacts.md

@@ -21,8 +21,8 @@ Bug may occur depending on different version of Vald, Kubernetes and etc.
 
 - Identify the bug
 Developers need to reproduce the bug in the developers environment.
-So please Identify the bug and clarify how it occurs.
-Also please clarify the expected behavior too.
+So please identify the bug and clarify how it occurs.
+Please also please clarify the expected behavior too.
 
 - Use the Github issue search
 The bug may be reported before.
@@ -31,19 +31,23 @@ So please check the Github issue before reporting.
 ### Proposal
 
 The Vald project’s development process is design-driven. 
-The significant change to the library, or the architecture be discussed first.
+The significant change to the library, or the architecture will be discussed first.
+
 We may need a detail documentation before you proposal is implemented.
 Your proposal will be reviewed and discussed and decide whether it is accepted or declined.
 
 ### Feature Request
 
 Feature request is welcome.
+
 Before opening an issue, please make sure your idea fits the project.
 You can make a strong claim to convince the project maintainers to accept your feature request.
+
 Please provide the problem and solution associated with the feature request as detail as possible.
 
 ### Security Issue Report
 
 The Vald team and community take serious concern about security issues.
-We appreciate your efforts to responsibly disclose your findings, and will make every effort to acknowledge your contributions.
-We will report security bugs in third-party modules to the person or team maintaining the module.
+
+We appreciate your efforts to disclose your findings.
+If the security issue is caused by third-part module, we will notify the person or team maintaining the module.