[connections/add-learn-more-link] assistant: Add "Learn more" link pointing at docs

[Felipe Borges <felipeborges src gnome org>]

commit b691cbc58467c72eaf2d43d7e38da82100665267
Author: Felipe Borges <felipeborges gnome org>
Date:   Wed May 26 15:43:21 2021 +0200

    assistant: Add "Learn more" link pointing at docs
    
    Fixes #46

 src/assistant.vala  |  8 ++++++++
 src/ui/assistant.ui | 12 ++++++++++++
 2 files changed, 20 insertions(+)
---
diff --git a/src/assistant.vala b/src/assistant.vala
index 563e4b5..e045c50 100644
--- a/src/assistant.vala
+++ b/src/assistant.vala
@@ -26,6 +26,14 @@ namespace Connections {
         private unowned Gtk.Entry url_entry;
         [GtkChild]
         private unowned Gtk.Button create_button; 
+        [GtkChild]
+        private unowned Gtk.Label learn_more_label;
+
+        construct {
+            // Translators: This is a link which takes users to a documentation page in yelp
+            var learn_more_string = _("Learn more.");
+            learn_more_label.set_markup ("<a href=\'help:gnome-connections/connect\'>%s</a>".printf 
(learn_more_string));
+        }
 
         [GtkCallback]
         private void on_url_entry_changed () {
diff --git a/src/ui/assistant.ui b/src/ui/assistant.ui
index aaab593..d01d77d 100644
--- a/src/ui/assistant.ui
+++ b/src/ui/assistant.ui
@@ -68,6 +68,18 @@
               <property name="left-attach">0</property>
             </packing>
           </child>
+
+          <child>
+            <object class="GtkLabel" id="learn_more_label">
+              <property name="visible">True</property>
+              <property name="use-markup">True</property>
+              <property name="halign">start</property>
+            </object>
+            <packing>
+              <property name="top-attach">3</property>
+              <property name="left-attach">0</property>
+            </packing>
+          </child>
         </object>
       </child>
     </template>