diff --git a/README.md b/README.md
index f7b4639e..8d58aeca 100644
--- a/README.md
+++ b/README.md
@@ -242,10 +242,6 @@ Note that user object and default configuration are merged using deep-merge, so
 
 All configuration details can be changed in real-time!  
 
-Configurtion object is large, but typically you only need to modify few values:
-
-- `enabled`: Choose which models to use
-- `modelPath`: Update as needed to reflect your application's relative path
 
 ```js
 config = {
@@ -371,6 +367,22 @@ config = {
 };
 ```
 
+Any user configuration and default configuration are merged using deep-merge, so you do not need to redefine entire configuration  
+Configurtion object is large, but typically you only need to modify few values:  
+
+- `enabled`: Choose which models to use
+- `modelPath`: Update as needed to reflect your application's relative path
+
+for example,
+
+```js
+const myConfig = {
+  backend: 'wasm',
+  filter: { enabled: false },
+}
+const result = await human.detect(image, myConfig)
+```
+
 <hr>
 
 ## Outputs
diff --git a/package.json b/package.json
index 0e6d1341..b7aa5618 100644
--- a/package.json
+++ b/package.json
@@ -45,7 +45,7 @@
     "build-esm-nobundle": "esbuild --bundle --minify --platform=browser --sourcemap --target=esnext --format=esm --external:@tensorflow --external:fs --metafile=dist/human.esm-nobundle.json --outfile=dist/human.esm-nobundle.js src/human.js",
     "build-node": "esbuild --bundle --minify --platform=node --sourcemap --target=esnext --format=cjs --metafile=dist/human.node.json --outfile=dist/human.node.js src/human.js",
     "build-node-nobundle": "esbuild --bundle --minify --platform=node --sourcemap --target=esnext --format=cjs --external:@tensorflow --metafile=dist/human.node.json --outfile=dist/human.node-nobundle.js src/human.js",
-    "build-demo": "esbuild --bundle --platform=browser --sourcemap --target=esnext --format=esm --external:fs --metafile=dist/demo-browser-index.json --outfile=dist/demo-browser-index.js demo/browser.js",
+    "build-demo": "esbuild --bundle --platform=browser --sourcemap --target=es2018 --format=esm --external:fs --metafile=dist/demo-browser-index.json --outfile=dist/demo-browser-index.js demo/browser.js",
     "build": "rimraf dist/* && npm run build-iife && npm run build-esm-bundle && npm run build-esm-nobundle && npm run build-node && npm run build-node-nobundle && npm run build-demo && ls -l dist/",
     "update": "npm update --depth 20 --force && npm dedupe && npm prune && npm audit",
     "changelog": "node changelog.js"