refactor: move SECURITY.md -> docs/Security.md, install it to CMAKE_INSTALL_DOCDIR

docs/CMakeLists.txt

@@ -24,3 +24,10 @@ if (DOXYGEN_FOUND)
 else()
   message(STATUS "Doxygen not found, skipping docs build")
 endif()
+
+# Show our documents in the IDE
+add_custom_target(docs
+  SOURCES
+    Security.md
+)
+install(FILES Security.md DESTINATION ${CMAKE_INSTALL_DOCDIR})

docs/Security.md

@@ -0,0 +1,11 @@
+# Security Policy
+
+## Supported Versions
+
+The latest minor release is supported and receives security updates:
+https://github.com/deskflow/deskflow/releases
+
+## Reporting a Vulnerability
+
+Please report vulnerabilities on our issue tracker as bugs:
+https://github.com/deskflow/deskflow/issues