Update appdata.xml

Author: Allen-B1

data/com.github.allen-b1.news.appdata.xml

@@ -5,16 +5,16 @@
   <metadata_license>CC0</metadata_license>
   <project_license>GPL-3.0+</project_license>
   <name>News</name>
-  <summary>Read RSS feeds</summary>
+  <summary>Read Atom and RSS feeds</summary>
   <developer_name>Allen B</developer_name>
   <screenshots>
       <screenshot type="default">
           <image>https://raw.githubusercontent.com/Allen-B1/news/master/screenshot.png</image>
       </screenshot>
   </screenshots>
   <description>
-    <p>Read the contents of RSS feeds.</p>
-    <p>Supports RSS 2.0 only</p>
+    <p>Read the contents of Atom and RSS feeds.</p>
+    <p>Supports RSS 2.0 and Atom only</p>
   </description>
   <url type="homepage">https://github.com/allen-b1/news</url>
   <url type="bugtracker">https://github.com/allen-b1/news/issues/labels/bug</url>
@@ -25,13 +25,15 @@
   </custom>
 
   <releases>
-    <release version="1.3" date="?">
+    <release version="1.3" date="2019-04-28">
       <description>
         <ul>
           <li>Allowed opening a feed from the command line</li>
           <li>Added the ability to view feed information</li>
           <li>Switched to relative date time strings (e.g. now, 5m ago)</li>
           <li>Toasts will show up instead of info bars</li>
+          <li>Sources will stay after closing and reopening the app</li>
+          <li>Added support for Atom feeds</li>
         </ul>
       </description>
     </release>

src/NewsNotebook.vala

@@ -15,7 +15,7 @@ class NewsNotebook : Granite.Widgets.DynamicNotebook {
 	construct {
 		this.new_tab_requested.connect(() => {
 			/* Show 'Add RSS Feed' dialog */
-			var dialog = new Granite.MessageDialog.with_image_from_icon_name("Add RSS feed",  "Enter the RSS feed url", "dialog-question", Gtk.ButtonsType.NONE);
+			var dialog = new Granite.MessageDialog.with_image_from_icon_name("Add feed",  "Enter the Atom or RSS feed url", "dialog-question", Gtk.ButtonsType.NONE);
 
 			dialog.add_button("Cancel", Gtk.ResponseType.CANCEL);
 			dialog.add_button("Add", Gtk.ResponseType.OK).get_style_context().add_class(Gtk.STYLE_CLASS_SUGGESTED_ACTION);
@@ -42,7 +42,7 @@ class NewsNotebook : Granite.Widgets.DynamicNotebook {
 						add_feed(feed);
                         this.source_add(feed.source);
 					} catch(Error err) {
-						this.error(new NewsNotebookError.ADD_FEED_ERROR("Could not fetch RSS feed"));
+						this.error(new NewsNotebookError.ADD_FEED_ERROR("Could not fetch feed"));
 					}
 					break;
 				case Gtk.ResponseType.CANCEL: