README.md in trestle-search-0.5.0.pre vs README.md in trestle-search-0.5.0

- old
+ new

@@ -1,7 +1,7 @@
 # Trestle Search (trestle-search)
 
-[![RubyGem](https://img.shields.io/gem/v/trestle-search.svg?style=flat&colorB=4065a9)](https://rubygems.org/gems/trestle-search)
+[![RubyGem](https://img.shields.io/gem/v/trestle-search?include_prereleases&color=%234d6bb2)](https://rubygems.org/gems/trestle-search)
 [![Build Status](https://img.shields.io/github/actions/workflow/status/TrestleAdmin/trestle-search/rspec.yml?style=flat)](https://github.com/TrestleAdmin/trestle-search/actions)
 [![Coveralls](https://img.shields.io/coveralls/TrestleAdmin/trestle-search.svg?style=flat)](https://coveralls.io/github/TrestleAdmin/trestle-search)
 
 > Search plugin for the Trestle admin framework
 