fix anchor links

docs/.vuepress/enhanceApp.js

@@ -0,0 +1,18 @@
+export default ({ router }) => {
+	if(typeof process === 'undefined' || process.env.VUE_ENV !== 'server') {
+		router.onReady(() => {
+			const { app } = router;
+
+			app.$once("hook:mounted", () => {
+				setTimeout(() => {
+					const { hash } = document.location;
+                    if (hash.length > 1) {
+            		const id = decodeURIComponent(hash.substring(1));
+            		const element = document.getElementById(id);
+            		if (element) element.scrollIntoView();
+          			}
+				}, 500);
+			});	
+		});
+	}
+}