Mark the v1/v2 docs as unsupported

These pages are already unlinked from every TOC but are still built and reachable by direct URL, so search engines can land readers on v1 guidance for a v4 library. Add a warning banner pointing at the current docs, and retitle the v1/v2 quickstart so it no longer presents itself as the Examine documentation. Keeping the pages published avoids 404s on existing inbound links.

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

Copilot-Session: 7747261c-2e05-4a5a-b842-2039534d3d86

Author: Shazwazza

docs/docs-v1-v2/configuration.md

@@ -5,6 +5,10 @@ uid: v2configuration
 order: 1
 ---
 
+> [!WARNING]
+> This page documents Examine v1/v2, which is no longer supported. It is kept online so existing links keep working.
+> For the current version, start at the [Examine documentation](xref:index).
+
 Configuration
 ===
 

docs/docs-v1-v2/indexing.md

@@ -5,6 +5,10 @@ uid: v2indexing
 order: 0
 ---
 
+> [!WARNING]
+> This page documents Examine v1/v2, which is no longer supported. It is kept online so existing links keep working.
+> For the current version, start at the [Examine documentation](xref:index).
+
 Indexing
 ===
 _**Tip**: There are many examples of indexing in the [`LuceneIndexTests` source code](https://github.com/Shazwazza/Examine/blob/dev/src/Examine.Test/Index/LuceneIndexTests.cs) to use as examples/reference._

docs/docs-v1-v2/quickstart.md

@@ -3,7 +3,11 @@ uid: v2index
 title: V1/V2 Quickstart
 ---
 
-Examine Documentation
+> [!WARNING]
+> This page documents Examine v1/v2, which is no longer supported. It is kept online so existing links keep working.
+> For the current version, start at the [Examine documentation](xref:index).
+
+Examine V1/V2 Documentation
 ===
 
 ## What is Examine?

docs/docs-v1-v2/searching.md

@@ -4,6 +4,10 @@ permalink: /searching
 uid: v2searching
 order: 2
 ---
+
+> [!WARNING]
+> This page documents Examine v1/v2, which is no longer supported. It is kept online so existing links keep working.
+> For the current version, start at the [Examine documentation](xref:index).
 Searching
 ===
 

docs/docs-v1-v2/sorting.md

@@ -5,6 +5,10 @@ uid: v2sorting
 order: 3
 ---
 
+> [!WARNING]
+> This page documents Examine v1/v2, which is no longer supported. It is kept online so existing links keep working.
+> For the current version, start at the [Examine documentation](xref:index).
+
 Sorting
 ===