add browsersync locally

package-lock.json

@@ -2049,6 +2049,11 @@
         "pkg-up": "^2.0.0"
       }
     },
+    "browsersync": {
+      "version": "0.0.1-security",
+      "resolved": "https://registry.npmjs.org/browsersync/-/browsersync-0.0.1-security.tgz",
+      "integrity": "sha1-6IX+Q1TS7FpWXDjEwr8KASrWSGA="
+    },
     "bs-recipes": {
       "version": "1.3.4",
       "resolved": "https://registry.npmjs.org/bs-recipes/-/bs-recipes-1.3.4.tgz",
@@ -2269,6 +2274,7 @@
         "anymatch": "^2.0.0",
         "async-each": "^1.0.1",
         "braces": "^2.3.2",
+        "fsevents": "^1.2.7",
         "glob-parent": "^3.1.0",
         "inherits": "^2.0.3",
         "is-binary-path": "^1.0.0",
@@ -4077,6 +4083,16 @@
       "integrity": "sha1-FQStJSMVjKpA20onh8sBQRmU6k8=",
       "dev": true
     },
+    "fsevents": {
+      "version": "1.2.13",
+      "resolved": "https://registry.npmjs.org/fsevents/-/fsevents-1.2.13.tgz",
+      "integrity": "sha512-oWb1Z6mkHIskLzEJ/XWX0srkpkTQ7vaopMQkyaEIoq0fmtFVxOthb8cCxeT+p3ynTdkk/RZwbgG4brR5BeWECw==",
+      "dev": true,
+      "optional": true,
+      "requires": {
+        "nan": "^2.12.1"
+      }
+    },
     "fstream": {
       "version": "1.0.12",
       "resolved": "https://registry.npmjs.org/fstream/-/fstream-1.0.12.tgz",

package.json

@@ -4,7 +4,8 @@
   "description": "WordPress Theme framework",
   "main": "index.js",
   "scripts": {
-    "postinstall": "gulp copy-assets"
+    "postinstall": "gulp copy-assets",
+	"watch-bs": "gulp watch-bs"
   },
   "engines": {
     "npm": ">=2.1.8"
@@ -26,7 +27,9 @@
     "url": "https://github.com/understrap/understrap/issues"
   },
   "homepage": "https://understrap.com",
-  "dependencies": {},
+  "dependencies": {
+    "browsersync": "0.0.1-security"
+  },
   "devDependencies": {
     "@babel/core": "^7.9.0",
     "@babel/preset-env": "^7.9.5",