Update Scala-MXNet install instructions (#11787)

Update Scala-MXNet install instructions

docs/install/index.md

@@ -969,30 +969,9 @@ $ make rpkg
 <div class="scala">
 <div class="gpu">
 
-```html
-<dependency>
-    <groupId>org.apache.mxnet</groupId>
-    <artifactId>mxnet-full_2.11-linux-x86_64-gpu</artifactId>
-</dependency>
-```
-<br>
-</div> <!-- End of gpu -->
+You can use the Maven packages defined in the following `dependency` to include MXNet in your Scala project. Please refer to the <a href="scala_setup.html">MXNet-Scala setup guide</a> for a detailed set of instructions to help you with the setup process.
 
-<div class="cpu">
-
-```html
-<dependency>
-    <groupId>org.apache.mxnet</groupId>
-    <artifactId>mxnet-full_2.11-linux-x86_64-cpu</artifactId>
-</dependency>
-```
-<br>
-</div> <!-- End of cpu -->
-</div> <!-- End of scala -->
-
-
-<div class="scala">
-<div class="gpu">
+<a href="https://mvnrepository.com/artifact/org.apache.mxnet/mxnet-full_2.11-linux-x86_64-gpu"><img src="https://img.shields.io/badge/org.apache.mxnet-linux gpu-green.svg" alt="maven badge"/></a>
 
 ```html
 <dependency>
@@ -1005,6 +984,10 @@ $ make rpkg
 
 <div class="cpu">
 
+You can use the Maven packages defined in the following `dependency` to include MXNet in your Scala project. Please refer to the <a href="scala_setup.html">MXNet-Scala setup guide</a> for a detailed set of instructions to help you with the setup process.
+
+<a href="https://mvnrepository.com/artifact/org.apache.mxnet/mxnet-full_2.11-linux-x86_64-cpu"><img src="https://img.shields.io/badge/org.apache.mxnet-linux cpu-green.svg" alt="maven badge"/></a>
+
 ```html
 <dependency>
     <groupId>org.apache.mxnet</groupId>
@@ -1454,6 +1437,10 @@ Will be available soon.
 <div class="scala">
 <div class="cpu">
 
+You can use the Maven packages defined in the following `dependency` to include MXNet in your Scala project. Please refer to the <a href="scala_setup.html">MXNet-Scala setup guide</a> for a detailed set of instructions to help you with the setup process.
+
+<a href="https://mvnrepository.com/artifact/org.apache.mxnet/mxnet-full_2.11-osx-x86_64-cpu"><img src="https://img.shields.io/badge/org.apache.mxnet-mac cpu-green.svg" alt="maven badge"/></a>
+
 ```html
 <dependency>
     <groupId>org.apache.mxnet</groupId>
@@ -2425,7 +2412,7 @@ You should see the following output:
 <div class="linux">
   <div class="scala">
     <div class="cpu gpu">
-      Refer to the <a href="scala_setup.html">MXNet-Scala setup guide</a>.
+      Run the <a href="https://github.com/apache/incubator-mxnet/tree/master/scala-package/mxnet-demo">MXNet-Scala demo project</a> to validate your Maven package installation.
     </div>
   </div>
 
@@ -2441,7 +2428,7 @@ Will be available soon.
 <div class="macos">
   <div class="scala">
     <div class="cpu gpu">
-      Refer to the <a href="scala_setup.html">MXNet-Scala setup guide</a>.
+      Run the <a href="https://github.com/apache/incubator-mxnet/tree/master/scala-package/mxnet-demo">MXNet-Scala demo project</a> to validate your Maven package installation.
     </div>
   </div>
   <div class="julia perl cpp">