Add tls versions
# HTTPS Package for Prometheus
-The `https` directory contains a Go package and a sample configuration file for running `node_exporter` with HTTPS instead of HTTP.
-When running a server with TLS use the flag `--web.config`
+The `https` directory contains a Go package and a sample configuration file for
+running `node_exporter` with HTTPS instead of HTTP. We currently support TLS 1.3
+and TLS 1.2.
+
+To run a server with TLS, use the flag `--web.config`.
e.g. `./node_exporter --web.config="web-config.yml"`
If the config is kept within the https directory.
