[WNMGDS-356] Update browser support page (#620)

* update browserlist to 2%

* Update browser support page content

* update to browser support page

* remove samsung internet. Add browserl.ist link

* updates to browser support page

Co-authored-by: Bernard <[email protected]>

browserslist

@@ -1,5 +1,4 @@
 # Browsers that we support. This is used by postcss-autoprefixer.
-# TODO(sawyer): Look at analytics to confirm we're covering all browsers
 
-> 5%
+> 2%
 Last 2 versions

packages/docs/src/pages/startup/browser-support.md

@@ -3,4 +3,6 @@ title: Browser support
 weight: 5
 ---
 
-The CMS design system is designed to support older and newer browsers through [progressive enhancement](https://en.wikipedia.org/wiki/Progressive_enhancement). The current major version of the design system (2.0) follows the [2% rule](https://gds.blog.gov.uk/2012/01/25/support-for-browsers/): we officially support any browser above 2% usage as observed by [analytics.usa.gov](https://analytics.usa.gov/). Currently, this means that the newest versions of Chrome, Firefox, Safari, and Internet Explorer 11 and up are supported.
+The CMS design system follows the [2% rule](https://gds.blog.gov.uk/2012/01/25/support-for-browsers/): we officially support any browser above 2% usage and the last 2 browsers versions for each browser as observed by [analytics.usa.gov](https://analytics.usa.gov/). For specific browser details check out [browserlist](https://browserl.ist/?q=last+2+versions%2C+%3E2%25). **Currently, the latest 2 versions of Chrome, Firefox, Safari, Internet Explorer 11, and Edge are supported.**
+
+The CMSDS is designed to be compatible with different operating systems and browser versions in order to provide a broad range of support. [Progressive enhancement and graceful degredation](https://www.w3.org/wiki/Graceful_degradation_versus_progressive_enhancement) methodologies are used to accomplish this.