Add readme badges

README.md

@@ -1,15 +1,21 @@
-# ExpiryMap
+<p align="center">
+  <a href="https://pkg.go.dev/github.com/TheoBrigitte/expirymap"><img src="https://pkg.go.dev/badge/github.com/TheoBrigitte/expirymap.svg" alt="Go Reference"></a>
+  <a href="https://github.com/TheoBrigitte/expirymap/actions/workflows/test.yml"><img src="https://github.com/TheoBrigitte/expirymap/actions/workflows/test.yml/badge.svg" alt="Github action"></a>
+  <a href="github.com/TheoBrigitte/expirymap/releases"><img src="https://img.shields.io/github/release/TheoBrigitte/expirymap.svg" alt="Latest Release"></a>
+</p>
+
+## ExpiryMap
 
 This Go package provides a map that automatically removes entries after a given expiry delay.
 
-## Features
+### Features
 
 * The map key can be any comparable type
 * The map value can be any type
 * The map is safe for concurrent use
 * The expiry delay is specified as a `time.Duration` value
 
-## Methods
+### Methods
 
 * NewExpiryMap - creates a new ExpiryMap
 * Get, Set, Delete - standard map operations
@@ -18,6 +24,6 @@ This Go package provides a map that automatically removes entries after a given
 * Clear - removes all entries from the map
 * Stop - stops the background goroutine that removes expired entries
 
-## Example
+### Example
 
 See [example/simple/simple.go](./example/simple/simple.go)