Remove dev warnings from docs .

docs/README.md

@@ -1,5 +1,3 @@
-!> This documentation is for the unreleased `dev` branch! See the [Github README](https://github.com/dermotduffy/frigate-hass-card?tab=readme-ov-file#frigate-lovelace-card) for documentation of the released version.
-
 # Getting Started
 
 ## Installation

docs/_coverpage.md

@@ -1,6 +1,6 @@
 ![logo](images/frigate-logo.svg)
 
-# Frigate Card <small>6.0.0 <small style="color: red">_*DEV*_</small></small>
+# Frigate Card <small>6.0.0</small>
 
 > A comprehensive camera card for Home Assistant.