Convert connection strings doc to tabbed version

Author: MS-jgol

articles/azure-monitor/app/sdk-connection-string.md

@@ -147,7 +147,7 @@ In this example, this connection string specifies explicit overrides for every s
 
 Connection Strings are supported in the following SDK versions:
 - .NET and .NET Core v2.12.0
-- Java v2.5.1
+- Java v2.5.1 and Java 3.0
 - Javascript v2.3.0
 - NodeJS v1.5.0
 - Python v1.0.0
@@ -160,7 +160,7 @@ A connection string can be set by either in code, environment variable, or confi
 
 - Connection String: `APPLICATIONINSIGHTS_CONNECTION_STRING`
 
-### .Net SDK example
+# [.NET/.NetCore](#tab/net)
 
 TelemetryConfiguration.ConnectionString: https://github.com/microsoft/ApplicationInsights-dotnet/blob/add45ceed35a817dc7202ec07d3df1672d1f610d/BASE/src/Microsoft.ApplicationInsights/Extensibility/TelemetryConfiguration.cs#L271-L274
 
@@ -193,7 +193,7 @@ NetCore config.json:
 ```
 
 
-### Java SDK example
+# [Java 2.5.X SDK](#tab/java)
 
 
 Java Explicitly Set:
@@ -209,7 +209,7 @@ ApplicationInsights.xml
 </ApplicationInsights>
 ```
 
-### Javascript SDK example
+# [JavaScript](#tab/js)
 
 Important: Javascript doesn't support the use of Environment Variables.
 
@@ -238,15 +238,15 @@ appInsights.loadAppInsights();
 appInsights.trackPageView();
 ```
 
-### Node SDK example
+# [Node.js](#tab/nodejs)
 
 ```javascript
 const appInsights = require("applicationinsights");
 appInsights.setup("InstrumentationKey=00000000-0000-0000-0000-000000000000;");
 appInsights.start();
 ```
 
-### Python SDK example
+# [Python](#tab/python)
 
 We recommend users set the environment variable.