docs(site): refine Why Video.js? close and install snippet

Installation: replace forward-link with a brief mini-pitch covering the
same gaps Section A names. Why page: drop the artificial break and
"Ready?" heading so the credibility paragraph flows as the last
paragraph; correct Mux attribution to the four named teams only, with
broader contributors mentioned separately.

https://claude.ai/code/session_01Uv795VrAR51b65fKTTn8gT

Author: claude

site/src/content/docs/concepts/why-videojs.mdx

@@ -127,10 +127,6 @@ Documentation aimed at human readers usually doesn't help an agent. Video.js v10
 
 <DocsLinkCard slug="how-to/build-with-ai">Build with AI</DocsLinkCard>
 
-## Ready?
+Video.js v10 is built at Mux by the teams behind Video.js, Plyr, Vidstack, and Media Chrome, with contributions from engineers across other player projects. Between us, our projects have served tens of billions of monthly video plays. Most of the choices on this page came from things we got wrong the first time, then the second, then the fifth. We've been supporting your edge cases for over a decade. Now we're shipping the player we always wanted to build.
 
 <DocsLinkCard slug="how-to/installation">Install Video.js</DocsLinkCard>
-
-----
-
-Video.js v10 is built at Mux by the teams behind Video.js, Plyr, Vidstack, Media Chrome, and other players. Between us, our projects have served tens of billions of monthly video plays. Most of the choices on this page came from things we got wrong the first time, then the second, then the fifth. We've been supporting your edge cases for over a decade. Now we're shipping the player we always wanted to build.

site/src/content/docs/how-to/installation.mdx

@@ -31,7 +31,7 @@ Video.js is a **React video player component library** — composable primit
 Video.js is an **HTML video player built on custom elements** — lightweight, framework-free components for building accessible, customizable players with minimal bundle size.
 </FrameworkCase>
 
-If you're still scoping Video.js for your project, start with <DocsLink slug="concepts/why-videojs">Why Video.js?</DocsLink>.
+Reach for Video.js when the `<video>` tag isn't enough: streaming formats like HLS, accessible controls that look the same across browsers, or a UI that matches the rest of your product. For the full case, see <DocsLink slug="concepts/why-videojs">Why Video.js?</DocsLink>.
 
 <LLMCase>
 <div data-cli-omit="installation">