docs: add a security policy (#586)

* Add a security policy

Having a security policy will allow people to provide security policy documentation to IT InfoSec teams making it easier to get Colima approved for use on employee laptops.

* Update SECURITY.md

Author: ryancurrah

SECURITY.md

@@ -0,0 +1,27 @@
+Thanks for helping make Colima safe for everyone.
+
+## Security
+
+We take the security of Colima seriously.
+
+We will ensure that your finding gets passed along to the appropriate maintainers for remediation. 
+
+## Reporting Security Issues
+
+If you believe you have found a security vulnerability in this repository, please report it to us through coordinated disclosure.
+
+**Please do not report security vulnerabilities through public GitHub issues, discussions, or pull requests.**
+
+Instead, please send an email to git[@]abiosoft.com.
+
+Please include as much of the information listed below as you can to help us better understand and resolve the issue:
+
+  * The type of issue (e.g., buffer overflow, SQL injection, or cross-site scripting)
+  * Full paths of source file(s) related to the manifestation of the issue
+  * The location of the affected source code (tag/branch/commit or direct URL)
+  * Any special configuration required to reproduce the issue
+  * Step-by-step instructions to reproduce the issue
+  * Proof-of-concept or exploit code (if possible)
+  * Impact of the issue, including how an attacker might exploit the issue
+
+This information will help us triage your report more quickly.