added missing translations + link to references

src/pages/en/work/[slug].astro

@@ -1,9 +0,0 @@
----
-import Page from "../../travaux/[slug].astro"
-
-export { getStaticPaths } from "../../travaux/[slug].astro"
-
-const { props } = Astro
----
-
-<Page {...props} />

src/pages/plan-du-site.astro

@@ -61,6 +61,11 @@ const pageTitle = t("sitemap");
 					}
 				</ul>
 			</li>
+			<li>
+				<h2>
+					<a href={l("/references")}>{t("references.titre")}</a>
+				</h2>
+			</li>
 		</ul>
 	</section>
 </BaseLayout>