updated release message

buildScripts/uploadGitHubReleaseMessage

@@ -1,6 +1,33 @@
-This is the development/testing release of the pdf2htmlEX AppImage.
+This is the most recent release of the pdf2htmlEX project.
 
-You can download the AppImage and 'just run it'.
+We release three types of binary objects:
 
-See: https://appimage.org/ for details
+1. The file *.AppImage on this release page is an AppImage
 
+   You can download the AppImage, make it executable and
+   then 'just run it'.
+
+   See: https://appimage.org/ for details
+
+2. The file *.deb is a Debian Archive
+
+   You can download the Debian Archive and
+   install it locally using:
+   
+       sudo apt install <<releativePathToDebFile>>
+
+3. You can alternatively get pdf2htmlEX Docker images 
+   from Docker Hub in either of the repositories:
+
+       pdf2htmlEX/pdf2htmlEX (offical release)
+
+   or 
+
+       stephengaito/pdf2htmlEX (development releases)
+
+We also release a zip archive of the browser test results
+in the *-testResults.zip file.
+
+Finally, the various *.txt *buildInfo.sh files have well known 
+(unchanging) names which can be used by automatic scripts to identifiy the 
+current full names of the binary artifacts.