update readme

dennisdickens254 · Aug 11, 2018 · 86da61e · 86da61e
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diff --git a/README.md b/README.md
@@ -13,6 +13,9 @@ For mobile applications, you can use `evtjs` by `WebView` in Android & iOS or vi
 For backend applications, use `evtjs` via `nodejs`.
 
 ## Install
+
+### NodeJS
+
 For NodeJS, use `npm`:
 
 ```bash
@@ -25,6 +28,18 @@ Or use `yarn`:
 yarn add evtjs
 ```
 
+#### Optional dependencies
+
+A C binding library for `libsecp256k1` could be compiled and installed if you want to sign on the transaction faster. All major platforms are supported except mobile devices:
+
+```bash
+npm install secp256k1
+```
+
+Using `libsecp256k1` can make the signing about 100 times faster.
+
+### Browsers
+
 For browser, you may download the source code and compile it for browsers in the root directory:
 
 ```js

diff --git a/package.json b/package.json
@@ -53,8 +53,7 @@
         "ecurve": "^1.0.6",
         "fcbuffer": "^2.2.0",
         "qrcode": "^1.2.0",
-        "randombytes": "^2.0.6",
-        "secp256k1": "^3.5.0"
+        "randombytes": "^2.0.6"
     },
     "babel": {
         "presets": [

diff --git a/pages/everiPay_demo.html b/pages/everiPay_demo.html
@@ -42,7 +42,9 @@ <h2>everiPay</h2>
         <blockquote><code></code></blockquote>
         <br>
         <div class="scanzone-wraper">
-            <div style="background: #f5d7d7; border-top-left-radius: 8px; border-top-right-radius: 8px; padding: .6rem .9rem; color: black; font-size: 80%; border-top: 2px red solid;">The token will be <b>destroyed</b> instantly after scanned!</div>
+            <div style="background: #f5d7d7; border-top-left-radius: 8px; border-top-right-radius: 8px; padding: .6rem .9rem; color: black; font-size: 80%; border-top: 2px red solid;">
+                The transaction will be <b>executed</b> instantly after scanned!
+            </div>
             <image id="qr" style="display: block; box-sizing: border-box; padding: 1rem 3rem; width: 100%;" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAegAAAHoCAYAAACCUHwMAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAe9SURBVHhe7dUxAQAgDMCwgX/PwIGIHslTCV3nGQAgZf8CACEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNAEEGDQBBBg0AQQYNADkzF8WlB8zy/kk+AAAAAElFTkSuQmCC"></image>
             <div style="text-align: center; background: #f5f5f5; border-bottom-left-radius: 8px; border-bottom-right-radius: 8px; padding: .6rem .9rem; color: black; font-size: 80%; border-top: 1px #f2f2f2 solid;">Will refresh automatically every 5s</div>
         </div>