[gnome-usage] Added Memory Header label

[Petr Štětka <pstetka src gnome org>]

commit 7012ee75afbec32fe4b613a5cc20ba6d7c177d81
Author: Yash Yadav <yashdimpu gmail com>
Date:   Mon Mar 18 18:53:51 2019 +0530

    Added Memory Header label

 src/memory-sub-view.vala | 6 ++++++
 1 file changed, 6 insertions(+)
---
diff --git a/src/memory-sub-view.vala b/src/memory-sub-view.vala
index 0a6ef14..a24a4a8 100644
--- a/src/memory-sub-view.vala
+++ b/src/memory-sub-view.vala
@@ -29,6 +29,11 @@ namespace Usage
         {
             name = "MEMORY";
 
+            var label = new Gtk.Label("<span font_desc=\"14.0\">" + _("Memory") + "</span>");
+            label.set_use_markup(true);
+            label.margin_top = 25;
+            label.margin_bottom = 15;
+
             process_list_box = new ProcessListBox(ProcessListBoxType.MEMORY);
             process_list_box.margin_bottom = 20;
             process_list_box.margin_top = 30;
@@ -51,6 +56,7 @@ namespace Usage
 
             var memory_box = new Gtk.Box(Gtk.Orientation.VERTICAL, 0);
             memory_box.halign = Gtk.Align.CENTER;
+            memory_box.pack_start(label, false, false, 0);
             memory_box.pack_start(speedometers, false, false, 0);
             memory_box.pack_start(spinner, true, true, 0);
             memory_box.add(no_process_view);