add header, navigation, pages

package-lock.json

@@ -9,7 +9,8 @@
       "version": "2.0.0",
       "license": "MIT",
       "devDependencies": {
-        "@11ty/eleventy": "^2.0.1"
+        "@11ty/eleventy": "^2.0.1",
+        "@11ty/eleventy-navigation": "^0.3.5"
       }
     },
     "node_modules/@11ty/dependency-tree": {
@@ -106,6 +107,20 @@
         "url": "https://opencollective.com/11ty"
       }
     },
+    "node_modules/@11ty/eleventy-navigation": {
+      "version": "0.3.5",
+      "resolved": "https://registry.npmjs.org/@11ty/eleventy-navigation/-/eleventy-navigation-0.3.5.tgz",
+      "integrity": "sha512-4aKW5aIQDFed8xs1G1pWcEiFPcDSwZtA4IH1eERtoJ+Xy+/fsoe0pzbDmw84bHZ9ACny5jblENhfZhcCxklqQw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "dependency-graph": "^0.11.0"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/11ty"
+      }
+    },
     "node_modules/@11ty/eleventy-utils": {
       "version": "1.0.3",
       "resolved": "https://registry.npmjs.org/@11ty/eleventy-utils/-/eleventy-utils-1.0.3.tgz",