chore: readme, docs, and version update (#716)

README.md

@@ -4,7 +4,7 @@
 <p align="center"><a href="#features">Features</a> section describes in detail about Resty capabilities</p>
 </p>
 <p align="center">
-<p align="center"><a href="https://github.com/go-resty/resty/actions/workflows/ci.yml?query=branch%3Amaster"><img src="https://github.com/go-resty/resty/actions/workflows/ci.yml/badge.svg" alt="Build Status"></a> <a href="https://codecov.io/gh/go-resty/resty/branch/master"><img src="https://codecov.io/gh/go-resty/resty/branch/master/graph/badge.svg" alt="Code Coverage"></a> <a href="https://goreportcard.com/report/go-resty/resty"><img src="https://goreportcard.com/badge/go-resty/resty" alt="Go Report Card"></a> <a href="https://github.com/go-resty/resty/releases/latest"><img src="https://img.shields.io/badge/version-2.8.0-blue.svg" alt="Release Version"></a> <a href="https://pkg.go.dev/github.com/go-resty/resty/v2"><img src="https://pkg.go.dev/badge/github.com/go-resty/resty" alt="GoDoc"></a> <a href="LICENSE"><img src="https://img.shields.io/github/license/go-resty/resty.svg" alt="License"></a> <a href="https://github.com/avelino/awesome-go"><img src="https://awesome.re/mentioned-badge.svg" alt="Mentioned in Awesome Go"></a></p>
+<p align="center"><a href="https://github.com/go-resty/resty/actions/workflows/ci.yml?query=branch%3Amaster"><img src="https://github.com/go-resty/resty/actions/workflows/ci.yml/badge.svg" alt="Build Status"></a> <a href="https://codecov.io/gh/go-resty/resty/branch/master"><img src="https://codecov.io/gh/go-resty/resty/branch/master/graph/badge.svg" alt="Code Coverage"></a> <a href="https://goreportcard.com/report/go-resty/resty"><img src="https://goreportcard.com/badge/go-resty/resty" alt="Go Report Card"></a> <a href="https://github.com/go-resty/resty/releases/latest"><img src="https://img.shields.io/badge/version-2.9.1-blue.svg" alt="Release Version"></a> <a href="https://pkg.go.dev/github.com/go-resty/resty/v2"><img src="https://pkg.go.dev/badge/github.com/go-resty/resty" alt="GoDoc"></a> <a href="LICENSE"><img src="https://img.shields.io/github/license/go-resty/resty.svg" alt="License"></a> <a href="https://github.com/avelino/awesome-go"><img src="https://awesome.re/mentioned-badge.svg" alt="Mentioned in Awesome Go"></a></p>
 </p>
 <p align="center">
 <h4 align="center">Resty Communication Channels</h4>
@@ -13,7 +13,7 @@
 
 ## News
 
-  * v2.8.0 [released](https://github.com/go-resty/resty/releases/tag/v2.8.0) and tagged on Sep 17, 2023.
+  * v2.9.1 [released](https://github.com/go-resty/resty/releases/tag/v2.9.1) and tagged on Sep 30, 2023.
   * v2.0.0 [released](https://github.com/go-resty/resty/releases/tag/v2.0.0) and tagged on Jul 16, 2019.
   * v1.12.0 [released](https://github.com/go-resty/resty/releases/tag/v1.12.0) and tagged on Feb 27, 2019.
   * v1.0 released and tagged on Sep 25, 2017. - Resty's first version was released on Sep 15, 2015 then it grew gradually as a very handy and helpful library. Its been a two years since first release. I'm very thankful to Resty users and its [contributors](https://github.com/go-resty/resty/graphs/contributors).

client.go

@@ -923,6 +923,8 @@ func (c *Client) SetOutputDirectory(dirPath string) *Client {
 
 // SetRateLimiter sets an optional `RateLimiter`. If set the rate limiter will control
 // all requests made with this client.
+//
+// Since v2.9.0
 func (c *Client) SetRateLimiter(rl RateLimiter) *Client {
 	c.rateLimiter = rl
 	return c

resty.go

@@ -14,7 +14,7 @@ import (
 )
 
 // Version # of resty
-const Version = "2.9.0-dev"
+const Version = "2.9.1"
 
 // New method creates a new Resty client.
 func New() *Client {