create entry for miniprogram for package.json (#567)

FEATURE
* create entry for miniprogram for package.json

* Trigger cloud build

Author: pyu10055

package.json

@@ -10,6 +10,7 @@
   "module": "dist/tf-layers.esm.js",
   "jsdelivr": "dist/tf-layers.min.js",
   "unpkg": "dist/tf-layers.min.js",
+  "miniprogram": "dist/miniprogram",
   "devDependencies": {
     "@tensorflow/tfjs-core": "1.2.3",
     "@types/jasmine": "~2.5.53",

scripts/build-npm.sh

@@ -21,5 +21,11 @@ rimraf dist/
 yarn
 yarn build
 rollup -c
+
+# Use minified files for miniprogram
+mkdir dist/miniprogram
+cp dist/tf-layers.min.js dist/miniprogram/index.js
+cp dist/tf-layers.min.js.map dist/miniprogram/index.js.map
+
 echo "Stored standalone library at dist/tf-layers(.min).js"
 npm pack