Add another missing dep

docs/package-lock.json

@@ -2263,6 +2263,12 @@
 			"integrity": "sha1-x57Zf380y48robyXkLzDZkdLS3k=",
 			"dev": true
 		},
+		"at-least-node": {
+			"version": "1.0.0",
+			"resolved": "https://registry.npmjs.org/at-least-node/-/at-least-node-1.0.0.tgz",
+			"integrity": "sha512-+q/t7Ekv1EDY2l6Gda6LLiX14rU9TV20Wa3ofeQmwPFZbOMo9DXrLbOjFaaclkXKWidIaopwAObQDqwWtGUjqg==",
+			"dev": true
+		},
 		"atob": {
 			"version": "2.1.2",
 			"resolved": "https://registry.npmjs.org/atob/-/atob-2.1.2.tgz",
@@ -5450,6 +5456,18 @@
 				}
 			}
 		},
+		"fs-extra": {
+			"version": "9.1.0",
+			"resolved": "https://registry.npmjs.org/fs-extra/-/fs-extra-9.1.0.tgz",
+			"integrity": "sha512-hcg3ZmepS30/7BSFqRvoo3DOMQu7IjqxO5nCDt+zM9XWjb33Wg7ziNT+Qvqbuc3+gWpzO02JubVyk2G4Zvo1OQ==",
+			"dev": true,
+			"requires": {
+				"at-least-node": "^1.0.0",
+				"graceful-fs": "^4.2.0",
+				"jsonfile": "^6.0.1",
+				"universalify": "^2.0.0"
+			}
+		},
 		"fs-write-stream-atomic": {
 			"version": "1.0.10",
 			"resolved": "https://registry.npmjs.org/fs-write-stream-atomic/-/fs-write-stream-atomic-1.0.10.tgz",
@@ -6729,6 +6747,16 @@
 				"minimist": "^1.2.5"
 			}
 		},
+		"jsonfile": {
+			"version": "6.1.0",
+			"resolved": "https://registry.npmjs.org/jsonfile/-/jsonfile-6.1.0.tgz",
+			"integrity": "sha512-5dgndWOriYSm5cnYaJNhalLNDKOqFwyDB/rr1E9ZsGciGvKPs8R2xYGCacuf3z6K1YKDz182fd+fY3cn3pMqXQ==",
+			"dev": true,
+			"requires": {
+				"graceful-fs": "^4.1.6",
+				"universalify": "^2.0.0"
+			}
+		},
 		"jsprim": {
 			"version": "1.4.1",
 			"resolved": "https://registry.npmjs.org/jsprim/-/jsprim-1.4.1.tgz",
@@ -11472,6 +11500,12 @@
 				"crypto-random-string": "^2.0.0"
 			}
 		},
+		"universalify": {
+			"version": "2.0.0",
+			"resolved": "https://registry.npmjs.org/universalify/-/universalify-2.0.0.tgz",
+			"integrity": "sha512-hAZsKq7Yy11Zu1DE0OzWjw7nnLZmJZYTDZZyEFHZdUhV8FkH5MCfoU1XMaxXovpyW5nq5scPqq0ZDP9Zyl04oQ==",
+			"dev": true
+		},
 		"unpipe": {
 			"version": "1.0.0",
 			"resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz",

docs/package.json

@@ -31,6 +31,7 @@
 	"gitHead": "4476da28dbbc2824e680137aa28b2b91b5afabec",
 	"devDependencies": {
 		"directory-tree": "^2.2.6",
+		"fs-extra": "^9.1.0",
 		"lodash.get": "^4.4.2",
 		"micromark": "^2.10.1",
 		"npm-watch": "^0.7.0",