Correct label from 'chocolatey' to 'Chocolatey' (#141)

All other product names are in upper case and this change brings consistency to the list

The website also capitalizes it while describing it

Author: yeikel

src/content/docs/guides/getting-started.mdx

@@ -40,7 +40,7 @@ You can install lychee using various package managers.
   <TabItem label="WinGet">
     <Code code="winget install lycheeverse.lychee" lang="sh" />
   </TabItem>
-  <TabItem label="chocolatey">
+  <TabItem label="Chocolatey">
     <Code code="choco install lychee" lang="sh" />
   </TabItem>
 </Tabs>