chore(docs): sentence case (#5493)

sentence case

Co-authored-by: fern-bot <[email protected]>

fern/pages/sdks/introduction/customer-showcase.mdx

@@ -8,7 +8,7 @@ At Fern, we help businesses build and distribute world-class SDKs that developer
 <div class="showcase">
 
 ## <div style={{ display: 'flex', alignItems: 'center', height: '1.5em' }}><img src="logos/Square.svg" alt="Square" width="20px" height="20px" class="logo-icon" style={{ marginRight: '10px' }} /> Square</div>
-<span class="fern-docs-badge large green subtle rounded">public company</span>
+<span class="fern-docs-badge large green subtle rounded">Public company</span>
 
 Square trusts Fern to generate and maintain **7 SDKs**, ensuring their APIs are easily accessible to developers building on any platform.  
 
@@ -77,8 +77,8 @@ Read about [the first auto-generated SDK](https://buildwithfern.com/blog/pinecon
 
 ## <div style={{ display: 'flex', alignItems: 'center', height: '1.5em' }}><img src="logos/ElevenLabs.svg" alt="ElevenLabs" width="16px" height="16px" class="logo-icon" style={{ marginRight: '10px' }} /> ElevenLabs</div>
 <div style={{ display: 'flex', alignItems: 'center' }}>
-<span class="fern-docs-badge large green subtle rounded" style="margin-right: 10px">file uploads</span>
-<span class="fern-docs-badge large green subtle rounded">websockets</span>
+<span class="fern-docs-badge large green subtle rounded" style="margin-right: 10px">File uploads</span>
+<span class="fern-docs-badge large green subtle rounded">WebSockets</span>
 </div>
 
 ElevenLabs uses Fern to generate SDKs with advanced capabilities for **file uploads** and **websocket communication**, enabling smooth interactions with their AI-powered audio APIs.  
@@ -173,7 +173,7 @@ Check out SSE in Humanloop's SDK here:
 ---
 
 ## <div style={{ display: 'flex', alignItems: 'center', height: '1.5em' }}><img src="logos/Abound.svg" alt="Abound" width="24px" height="24px" class="logo-icon" style={{ marginRight: '10px' }} /> Abound</div> 
-<span class="fern-docs-badge large green subtle rounded">integration tests</span>
+<span class="fern-docs-badge large green subtle rounded">Integration tests</span>
 
 Abound relies on Fern to manage a **full suite of integration tests**, ensuring their SDKs and APIs deliver a reliable experience for partners and developers.