[gnome-text-editor] update README.md

[Christian Hergert <chergert src gnome org>]

commit eeef9f76350f71bc1cf7cef4e5e1283979fda456
Author: Christian Hergert <chergert redhat com>
Date:   Thu Nov 18 17:10:05 2021 -0800

    update README.md

 README.md | 23 ++++++++++++++++++-----
 1 file changed, 18 insertions(+), 5 deletions(-)
---
diff --git a/README.md b/README.md
index c248ff8..6fc4c04 100644
--- a/README.md
+++ b/README.md
@@ -4,17 +4,30 @@ Text Editor is a simple text editor that focus on session management.
 It works hard to keep track of changes and state even if you quit the application.
 You can come back to your work even if you've never saved it to a file.
 
+## Features
+
+ * A simple editor focused on a solid default experience
+ * Syntax highlighting for common programming languages
+ * Search & Replace including support for PCRE2-based regular expressions
+ * Inline spell checking
+ * Document printing
+ * Desktop integration including dark-mode and saving session state
+ * Support for .editorconfig and modelines
+ * Integrated support for Vim keybindings
+
 ## Dependencies
 
-Text Editor was built as a test application for the development of GTK 4 and GtkSourceView 5 and therefore 
requires both of those along with libadwaita.
-Enchant 2 is used to provide spellchecking capabilities.
+ * GTK 4.4 or newer
+ * GtkSourceView 5.4 or newer
+ * Libadwaita
+ * libpcre (for .editorconfig support)
+ * icu (for language code ids)
 
-A full list of dependencies beyond what is provided by the GNOME SDK can be found in our Flatpak build 
manifest at 
[org.gnome.TextEditor.Devel.json](https://gitlab.gnome.org/GNOME/gnome-text-editor/tree/master/org.gnome.TextEditor.Devel.json).
+Refer to the 
[org.gnome.TextEditor.Devel.json](https://gitlab.gnome.org/GNOME/gnome-text-editor/tree/master/org.gnome.TextEditor.Devel.json)
 Flatpak manifest for additional details.
 
 ## Plans
 
-Everyone has their favorite programming text editors.
-Text Editor is focused on being a great default text editor.
+To be a delightful and pleasing default text editor experience for GNOME.
 
 ## Try it Out!