updated READMEs.

Console/README.md

@@ -0,0 +1,7 @@
+GameRes.Console
+===============
+
+Console utility that extracts files from game archives.  Used as a testing
+playground for GameRes library.
+
+No longer developed.

GameRes/README.md

@@ -0,0 +1,7 @@
+GameRes Library
+===============
+
+Library of the base classes that deal with game resources, such as archives,
+images and audio files.  All derived file formats are expected to register
+themselves by the means of [MEF](https://msdn.microsoft.com/en-us/library/dd460648.aspx) within
+repository class FormatCatalog.

Image.Convert/README.md

@@ -0,0 +1,7 @@
+Image.Convert
+=============
+
+Console utility that converts images between various formats.  Used as a
+testing playground for GameRes library.
+
+No longer developed.

README.md

@@ -9,6 +9,25 @@ Requires .NET Framework v4.5 or newer (https://www.microsoft.com/net)
 
 [Download latest release](https://github.com/morkt/GARbro/releases)
 
+Operation
+---------
+
+Browse through the file system to a file of interest.  If you think it's an
+archive, try to 'enter' inside by pressing 'Enter' on it.  If GARbro
+recognizes format its contents will be displayed just like regular file
+system.  Some archives are encrypted, so you will be asked for credentials or
+a supposed game title.  If game is not listed among available options then
+most likely archive could not be opened by current GARbro version.
+
+Files could be extracted from archives by pressing 'F4', with all images and
+audio converted to common formats in the process, of course if game format
+itself is recognized.
+
+When displaying file system contents GARbro assigns types to files based on
+their names extension (so it's not always correct).  If types are misapplied,
+it could be changed by selecting files and assigning type manually via context
+menu 'Assign file type'.
+
 GUI Hotkeys
 -----------