Convert README to Markdown and include CI status

README.md

@@ -1,5 +1,7 @@
-1 Readme
-********
+GNUstep Base Library
+====================
+
+[![CI](https://github.com/gnustep/libs-base/actions/workflows/main.yml/badge.svg)](https://github.com/gnustep/libs-base/actions/workflows/main.yml?query=branch%3Amaster)
 
 The GNUstep Base Library is a library of general-purpose, non-graphical
 Objective C objects.  For example, it includes classes for strings,
@@ -7,58 +9,56 @@ object collections, byte streams, typed coders, invocations,
 notifications, notification dispatchers, moments in time, network ports,
 remote object messaging support (distributed objects), and event loops.
 
-   It provides functionality that aims to implement the non-graphical
+It provides functionality that aims to implement the non-graphical
 portion of the Apple's Cocoa frameworks (the Foundation library) which
 came from the OpenStep standard.
 
-1.1 Initial reading
-===================
+Initial reading
+---------------
 
-The file 'NEWS' has the library's feature history.
+The files [INSTALL](INSTALL) or [GNUstep-HOWTO][1] (from the web site)
+gives instructions for installing the library.
 
-   The files 'INSTALL' or 'GNUstep-HOWTO' (from the web site) gives
-instructions for installing the library.
+[1]: http://www.gnustep.org/resources/documentation/User/GNUstep/gnustep-howto.pdf
 
-1.2 License
-===========
+License
+-------
 
 The GNUstep libraries and library resources are covered under the GNU
 Lesser Public License.  This means you can use these libraries in any
 program (even non-free programs).  If you distribute the libraries along
 with your program, you must make the improvements you have made to the
 libraries freely available.  You should read the COPYING.LIB file for
-more information.  All files in the 'Source', 'Headers'
+more information.  All files in the 'Source', 'Headers',
 'NSCharacterSets', 'NSTimeZones', and 'Resources' directories and
 subdirectories under this are covered under the LGPL.
 
-   GNUstep tools, test programs, and other files are covered under the
+GNUstep tools, test programs, and other files are covered under the
 GNU Public License.  This means if you make changes to these programs,
 you cannot charge a fee, other than distribution fees, for others to use
 the program.  You should read the COPYING file for more information.
 All files in the 'Documentation', 'Examples', 'Tools', 'config', and
 'macosx' directories are covered under the GPL.
 
-   With GNUstep-Base, we strongly recommend the use of the ffcall
+With GNUstep-Base, we strongly recommend the use of the ffcall
 libraries, which provides stack frame handling for NSInvocation and
 NSConnection.  "Ffcall is under GNU GPL. As a special exception, if used
 in GNUstep or in derivate works of GNUstep, the included parts of ffcall
 are under GNU LGPL" (Text in quotes provided by the author of ffcall).
 
-1.3 How can you help?
-=====================
+How can you help?
+-----------------
 
-   * Give us feedback!  Tell us what you like; tell us what you think
-     could be better.
+Give us feedback! Tell us what you like; tell us what you think could be better.
 
-     Please log bug reports on the GNUstep project page
-     <http://savannah.gnu.org/bugs/?group=gnustep> or send bug reports
-     to <bug-gnustep@gnu.org>.
+Please log bug reports on the [GitHub issues page][2].
 
-     Happy hacking!
+[2]: https://github.com/gnustep/libs-base/issues
 
-   Copyright (C) 2005 Free Software Foundation
+Happy hacking!
 
-   Copying and distribution of this file, with or without modification,
+Copyright (C) 2005 Free Software Foundation
+
+Copying and distribution of this file, with or without modification,
 are permitted in any medium without royalty provided the copyright
 notice and this notice are preserved.
-