"Update docs: Extensions/Listview Added Installation instructions - copied text from Dropdownlist installation instructions"

Ammend:
"Changed ListGroup to ListView"

Author: vincentnl78

Documentation/Blazorise.Docs/Pages/Docs/Extensions/ListView/ListViewPage.razor

@@ -15,9 +15,30 @@
 </DocsPageParagraph>
 
 <DocsPageParagraph>
-    List views use <Code>ListGroup</Code> behind the covers, so you may make use of the <Code>ListGroup</Code> underlying APIs.
+    List views use <Code>ListView</Code> behind the covers, so you may make use of the <Code>ListView</Code> underlying APIs.
 </DocsPageParagraph>
 
+<DocsPageParagraph>
+    To be able to use <Code>ListView</Code> component you first need to install it.
+</DocsPageParagraph>
+
+<DocsPageSubtitle>
+    Installation
+</DocsPageSubtitle>
+
+<Alert Color="Color.Info" Visible>
+    <AlertDescription>
+        The DropdownList extension is part of the <Code>Blazorise.Components</Code> NuGet package.
+    </AlertDescription>
+</Alert>
+
+<DocsPageSection>
+    <DocsPageSectionHeader Title="NuGet">
+        Install extension from NuGet.
+    </DocsPageSectionHeader>
+    <DocsPageSectionSource Code="ComponentsNugetInstallExample"></DocsPageSectionSource>
+</DocsPageSection>
+
 <DocsPageSubtitle>
     Examples
 </DocsPageSubtitle>