Update "Using Selenium" documentation with C# example from .NET README (#2584)

[deploy site]

Updated the "Using Selenium" documentation in multiple languages to include references to the .NET README with C# example code blocks:

English (using_selenium.en.md)
Japanese (using_selenium.ja.md)
Portuguese (using_selenium.pt-br.md)
Simplified Chinese (using_selenium.zh-cn.md)

Author: rushixdd

website_and_docs/content/documentation/webdriver/getting_started/using_selenium.en.md

@@ -237,7 +237,7 @@ gradle clean test
 {{< gh-codeblock path="/examples/python/README.md#L35" >}}
 {{% /tab %}}
 {{< tab header="CSharp" >}}
-{{< badge-code >}}
+{{< gh-codeblock path="/examples/dotnet/README.md#L44" >}}
 {{< /tab >}}
 {{% tab header="Ruby" %}}
 {{< gh-codeblock path="/examples/ruby/README.md#L26" >}}

website_and_docs/content/documentation/webdriver/getting_started/using_selenium.ja.md

@@ -227,7 +227,7 @@ gradle clean test
 {{< gh-codeblock path="/examples/python/README.md#L35" >}}
 {{% /tab %}}
 {{< tab header="CSharp" >}}
-{{< badge-code >}}
+{{< gh-codeblock path="/examples/dotnet/README.md#L44" >}}
 {{< /tab >}}
 {{% tab header="Ruby" %}}
 {{< gh-codeblock path="/examples/ruby/README.md#L26" >}}

website_and_docs/content/documentation/webdriver/getting_started/using_selenium.pt-br.md

@@ -231,7 +231,7 @@ gradle clean test
 {{< gh-codeblock path="/examples/python/README.md#L35" >}}
 {{% /tab %}}
 {{< tab header="CSharp" >}}
-{{< badge-code >}}
+{{< gh-codeblock path="/examples/dotnet/README.md#L44" >}}
 {{< /tab >}}
 {{% tab header="Ruby" %}}
 {{< gh-codeblock path="/examples/ruby/README.md#L26" >}}

website_and_docs/content/documentation/webdriver/getting_started/using_selenium.zh-cn.md

@@ -224,7 +224,7 @@ gradle clean test
 {{< gh-codeblock path="/examples/python/README.md#L35" >}}
 {{% /tab %}}
 {{< tab header="CSharp" >}}
-{{< badge-code >}}
+{{< gh-codeblock path="/examples/dotnet/README.md#L44" >}}
 {{< /tab >}}
 {{% tab header="Ruby" %}}
 {{< gh-codeblock path="/examples/ruby/README.md#L26" >}}