Fix Entra ID product name

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

Author: danbarr

docs/toolhive/guides-k8s/remote-mcp-proxy.mdx

@@ -44,7 +44,7 @@ flowchart LR
 
 ## Prerequisites
 
-- An OIDC identity provider (Keycloak, Okta, Azure AD, etc.)
+- An OIDC identity provider (Keycloak, Okta, Microsoft Entra ID, etc.)
 - Access to a remote MCP server that supports HTTP transport (SSE or Streamable
   HTTP)