docs: Updates issue and pull request templates (#112)

Signed-off-by: aeneasr <[email protected]>

SECURITY.md

@@ -0,0 +1,20 @@
+# Security Policy
+
+## Supported Versions
+
+We release patches for security vulnerabilities.
+Which versions are eligible receiving such patches
+depend on the CVSS v3.0 Rating:
+
+| CVSS v3.0  | Supported Versions                        |
+| ---------- | ----------------------------------------- |
+| 9.0-10.0   | Releases within the previous three months |
+| 4.0-8.9    | Most recent release                       |
+
+## Reporting a Vulnerability
+
+Please report (suspected) security vulnerabilities to
+**[[email protected]](mailto:[email protected])**. You will receive
+a response from us within 48 hours. If the issue is confirmed,
+we will release a patch as soon as possible depending on complexity
+but historically within a few days.