feat: discord announcement

src/components/Qrcode.css

@@ -349,8 +349,17 @@ td {
     transition-duration: 0.3s;
 }
 
+.Qr-new-discord {
+    font-size: 12px;
+    position: absolute;
+    left: 0;
+    bottom: -54px;
+    font-weight: bold;
+    text-decoration: underline;
+}
+
 @media (min-width: 500px) {
-    .Qr-input-hint {
+    .Qr-input-hint, .Qr-new-discord {
         margin-top: 14px;
         font-size: 14px;
     }

src/containers/app/InputText.js

@@ -69,6 +69,9 @@ const InputText = ({dispatch}) => {
                 <div className="Qr-input-hint">
                     上传普通二维码或输入网址
                 </div>
+                <a className="Qr-new-discord" href="https://discord.gg/V9CNuqYfte" target='_blank'>
+                    New！加入  QRBTF Discord
+                </a>
             </div>
         </React.Fragment>);
 }