webkit2_customizablewidget: Fix spellchecked typos

Signed-off-by: Emanuele Aina <emanuele.aina@collabora.com>

content/guides/webkit2_customizablewidget.md

@@ -81,7 +81,7 @@ radio button.
     -gtk-icon-source: -gtk-scaled(url("checkbox-unchecked.png"), url("checkbox-unchecked@2.png"));
     }
 
-You need to remeber to provide a full set of images for all conditions of the
+You need to remember to provide a full set of images for all conditions of the
 buttons. Also remember that you define `-gtk-icon-source` once, other style
 rules will be ignored.
 
@@ -260,7 +260,7 @@ manipulating a following selector in
 The used icons for media controls are those of the default theme on your
 system. If you change nothing on the theme then you might be using "Adwaita"
 theme provided by `gnome-icon-theme-symbolic` package. The Adwaita is the
-default theme for GTK+. So it is not recommened to change or modify the system
+default theme for GTK+. So it is not recommend to change or modify the system
 icons included for the theme. Instead, we provide you a useful paths to
 override the icons.