chore(ci): adding release badge to readme

README.md

@@ -1,16 +1,17 @@
 ## Underdog
 
-[![Apache 2.0](https://img.shields.io/github/license/nebula-plugins/nebula-project-plugin.svg)](http://www.apache.org/licenses/LICENSE-2.0)
+[![Apache 2.0](https://img.shields.io/github/license/nebula-plugins/nebula-project-plugin.svg)](http://www.apache.org/licenses/LICENSE-2.0) 
+[![release](https://github.com/grooviter/underdog/actions/workflows/release.yml/badge.svg?branch=main)](https://github.com/grooviter/underdog/actions/workflows/release.yml)
 
 ### Overview
 
 Underdog is a set of Groovy libraries for data analysis:
 
-- `underdog-dataframe`: module for working with columnar data.
-- `underdog-graphs`: module exploring graph theory problems.
-- `underdog-plots`: module for creating charts.
+- `underdog-dataframe`: module to work with columnar data.
+- `underdog-graphs`: module to explore graph theory problems.
+- `underdog-plots`: module to create charts.
 - `underdog-ml`: module to explore machine learning problems.
-- `underdog-ta`: module for financial technical analysis.
+- `underdog-ta`: module to explore financial technical analysis.
 
 ### Documentation