drop 0.4.0-sheet.png from README.md

README.md

@@ -10,10 +10,6 @@ and the [man pages](https://nick-black.com/notcurses).
 notcurses is available in the Arch [AUR](https://aur.archlinux.org/packages/notcurses/).
 Packages for Debian Unstable and Ubuntu Focal are available from [DSSCAW](https://www.dsscaw.com/apt.html).
 
-<p align="center">
-<img width="640" height="242" src="doc/0.4.0-sheet.png" alt="notcurses 0.4.0 contact sheet"/>
-</p>
-
 [![Build Status](https://drone.dsscaw.com:4443/api/badges/dankamongmen/notcurses/status.svg)](https://drone.dsscaw.com:4443/dankamongmen/notcurses)
 [![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://opensource.org/licenses/Apache-2.0)
 

doc/release-checklist.md

@@ -13,7 +13,7 @@
 * Repack DFSG-safe tarball, upload to github
   * download github-spun tarball
   * remove nonfree multimedia:
-    * rm data/chun* data/[deflmPw]* doc/0.4.0-sheet.png src/poc/jungle.c
+    * rm data/chun* data/[deflmPw]* src/poc/jungle.c
   * `tar -cJf ../v$VERSION.dfsg.tar.xz -C.. notcurses-$VERSION`
   * upload to github
 * Build new Debian package