docs: add security guildelines

SECURITY.md

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+# Security Policies and Procedures
+
+This document outlines security procedures and general policies for the `apidom-validate`
+project.
+
+* [Reporting a Bug](#reporting-a-bug)
+* [Disclosure Policy](#disclosure-policy)
+* [Comments on this Policy](#comments-on-this-policy)
+
+## Reporting a Bug
+
+The `apidom-validate` team and community take all security bugs in `apidom-validate` seriously.
+Thank you for improving the security of `apidom-validate`. We appreciate your efforts and
+responsible disclosure and will make every effort to acknowledge your
+contributions.
+
+Report security bugs by emailing the lead maintainer at **[email protected]**.
+
+The lead maintainer will acknowledge your email within 48 hours, and will send a
+more detailed response within 48 hours indicating the next steps in handling
+your report. After the initial reply to your report, one of the team members will
+endeavor to keep you informed of the progress towards a fix and full
+announcement, and may ask for additional information or guidance.
+
+Report security bugs in third-party modules to the person or team maintaining
+the module, but still let us know that we have such a third-party module in our
+dependencies.
+
+## Disclosure Policy
+
+When the team receives a security bug report, they will assign it to a
+primary handler. This person will coordinate the fix and release process,
+involving the following steps:
+
+* Confirm the problem and determine the affected versions.
+* Audit code to find any potential similar problems.
+* Prepare fixes for all releases still under maintenance. These fixes will be
+  released as fast as possible to npm.
+
+## Comments on this Policy
+
+If you have suggestions on how this process could be improved please submit a
+pull request.