fix doc dir for monorepo

docs/package.json

@@ -1,5 +1,5 @@
 {
-  "name": "@astrojs/docs-template",
+  "name": "docs",
   "version": "0.0.2",
   "private": true,
   "scripts": {
@@ -13,7 +13,7 @@
   },
   "devDependencies": {
     "@snowpack/plugin-dotenv": "^2.1.0",
-    "astro": "^0.17.2",
+    "astro": "^0.18.0-next.1",
     "broken-link-checker": "^0.7.8",
     "npm-run-all": "^4.1.5",
     "prettier": "^2.3.2",

docs/snowpack.config.mjs

@@ -4,4 +4,5 @@ export default {
     '~': './src',
   },
   plugins: ['@snowpack/plugin-dotenv'],
-};
+  workspaceRoot: '../',
+};