Doc: Add tags for Qt WebKit examples

Use the manifest meta-content system to add suitable tags for Qt WebKit
examples.

This enables users to filter for them in Qt Creator Welcome mode by
typing 'webkit'.

Change-Id: Ie9b5f6ff9f455dd3d8f7c64e5f73e30ff021f208
Reviewed-by: Kai Koehne <kai.koehne@digia.com>
Reviewed-by: Jerome Pasion <jerome.pasion@digia.com>

doc/global/manifest-meta.qdocconf

@@ -32,7 +32,7 @@
 # manifestmeta.global.names           = *
 # manifestmeta.global.tags            = qt5
 
-manifestmeta.filters                =   highlighted
+manifestmeta.filters                =   highlighted webkit1 webkit2
 
 manifestmeta.highlighted.names      =   "QtQuick/Qt Quick Demo - Same Game" \
                                         "QtQuick/Qt Quick Demo - Photo Surface" \
@@ -50,3 +50,23 @@ manifestmeta.highlighted.names      =   "QtQuick/Qt Quick Demo - Same Game" \
                                         "QtWidgets/Application Example"
 
 manifestmeta.highlighted.attributes =   isHighlighted:true
+
+# Add 'webkit1' tag for QtWebKit1 examples
+manifestmeta.webkit1.names          =  "QtWebKitExamples/Tab Browser" \
+                                       "QtWebKitExamples/DOM Traversal Example" \
+                                       "QtWebKitExamples/Fancy Browser Example" \
+                                       "QtWebKitExamples/Form Extractor Example" \
+                                       "QtWebKitExamples/WebKit Frame Capture Example" \
+                                       "QtWebKitExamples/The Webkit Bridge Tutorial*" \
+                                       "QtWebKitExamples/Previewer Example" \
+                                       "QtWebKitExamples/Wheel Scroller Example" \
+                                       "QtWebKitExamples/Simple Selector Example" \
+                                       "QtWebKitExamples/QObject XML Model Example"
+
+manifestmeta.webkit1.tags           =   webkit1
+
+# Add 'webkit2' tag for QtWebKit2 examples
+manifestmeta.webkit2.names          =  "QtWebKitExamples/Flickr View Example" \
+                                       "QtWebKitExamples/YouTube View Example"
+
+manifestmeta.webkit2.tags           =   webkit2