Fix relative links

Signed-off-by: Dan Barr <6922515+danbarr@users.noreply.github.com>

Author: danbarr

docs/theme-preview.mdx

@@ -30,10 +30,10 @@ By default level 2-3 headings generate the TOC on the top right
 
 ### Level 3 heading
 
-Some text within a section. [Here is a link](/theme-preview.mdx).
+Some text within a section. [Here is a link](./theme-preview.mdx).
 
 And here is some `inline code` to show how it looks, even some
-[`inline code with a link`](/theme-preview.mdx).
+[`inline code with a link`](./theme-preview.mdx).
 
 #### Level 4 heading
 
@@ -190,7 +190,7 @@ Stacklok Enterprise includes turnkey integrations for common identity providers.
 Instead of manually configuring OIDC, use the built-in Okta or Entra ID
 integration to map IdP groups directly to ToolHive roles and policy sets.
 
-[Learn more about Stacklok Enterprise](/toolhive/enterprise).
+[Learn more about Stacklok Enterprise](./toolhive/enterprise.mdx).
 
 :::