chore: fix broken links (#458)

- fix broken links
- add rbenv as an option for managing ruby

docs/contributing-guide.md

@@ -19,11 +19,11 @@ This guide will help you get started with Chatwoot! Thank you for taking an inte
 
 ### Pull Request Guidelines
 
-- Please make sure that you have read the [issue triage guidelines](https://www.chatwoot.com/hc/handbook/en/engineering/8) before you make a contribution.
+- Please make sure that you have read the [issue triage guidelines](https://www.chatwoot.com/hc/handbook/articles/issue-triage-29) before you make a contribution.
 - We use [git-flow](https://nvie.com/posts/a-successful-git-branching-model/) branching model. The base branch is `develop`
 - Please raise your PRs against `develop` branch
 - It's okay and encouraged to have multiple small commits as you work on the PR - we will squash the commits before merging.
-- For other guidelines, please refer to [PR Guidelines](https://www.chatwoot.com/hc/handbook/en/engineering/9)
+- For other guidelines, please refer to [PR Guidelines](https://www.chatwoot.com/hc/handbook/articles/pull-request-guidelines-32)
 - Ensure that all the text copies that you add into the product are i18n translatable. You are only required to add the `English` version of the strings. We pull in the other language translations from our contributors on crowdin. Ref [Translation guidelines](https://www.chatwoot.com/docs/contributing-guide/translation-guidelines) to learn more.
 
 ### Developing a new feature:

docs/contributing-guide/environment-setup/mac-os.md

@@ -26,12 +26,18 @@ brew update
 brew install git
 ```
 
-### Install RVM
+### Install RVM or rbenv
 
 ```bash
 curl -L https://get.rvm.io | bash -s stable
 ```
 
+Alternatively you can use `rbenv`
+
+```bash
+brew install rbenv
+```
+
 ### Install Ruby
 
 Chatwoot APIs are built on Ruby on Rails, you need install ruby 3.2.2