move usage ToC to USAGE.md

README.md

@@ -25,15 +25,6 @@ Packages for Debian Unstable and Ubuntu Focal are available from [DSSCAW](https:
 * [Introduction](#introduction)
 * [Requirements](#requirements)
   * [Building](#building)
-* [Use](#use)
-  * [Direct Mode](#direct-mode)
-  * [Alignment](#alignment)
-  * [Input](#input)
-  * [Planes](#planes) ([Plane Channels API](#plane-channels-api))
-  * [Cells](#cells) ([Cell Channels API](#cell-channels-api))
-  * [Reels](#reels)
-  * [Widgets](#widgets)
-  * [Channels](#channels)
 * [Included tools](#included-tools)
 * [Differences from NCURSES](#differences-from-ncurses)
   * [Features missing relative to NCURSES](#features-missing-relative-to-ncurses)

USAGE.md

@@ -1,5 +1,14 @@
 # Usage
 
+* [Direct Mode](#direct-mode)
+* [Alignment](#alignment)
+* [Input](#input)
+* [Planes](#planes) ([Plane Channels API](#plane-channels-api))
+* [Cells](#cells) ([Cell Channels API](#cell-channels-api))
+* [Reels](#reels)
+* [Widgets](#widgets)
+* [Channels](#channels)
+
 A full API reference [is available](https://nick-black.com/notcurses/). Manual
 pages ought have been installed along with notcurses. This document is a
 secondary reference, and should not be considered authoritative. For a more