Update documentation for release 5.0.1

Signed-off-by: Stefan Weil <[email protected]>

ChangeLog

@@ -1,3 +1,15 @@
+2022-01-06 - V5.0.1 (planned)
+  * Add SPDX-License-Identifier to public include files.
+  * Support redirections when running OCR on a URL.
+  * Lots of fixes and improvements for cmake builds.
+    Distributions should use the autoconf build.
+  * Fix broken msys2 build with gcc 11.
+  * Fix parameter certainty_scale (was duplicated).
+  * Fix some compiler warnings and clean code.
+  * Correctly detect amd64 and i386 on FreeBSD.
+  * Add libarchive and libcurl in continuous integration actions.
+  * Update submodule googletest to release v1.11.0.
+
 2021-11-22 - V5.0.0
   * Faster training and recognition by default (float instead of
     double calculations)

README.md

@@ -60,7 +60,11 @@ at Hewlett-Packard Co, Greeley Colorado between 1985 and 1994, with some
 more changes made in 1996 to port to Windows, and some C++izing in 1998.
 In 2005 Tesseract was open sourced by HP. From 2006 until November 2018 it was developed by Google.
 
-The latest stable version is **[5.0.0](https://github.com/tesseract-ocr/tesseract/releases/tag/5.0.0)**, released on November 30, 2021.
+Major version 5 is the current stable version and started with release
+[5.0.0](https://github.com/tesseract-ocr/tesseract/releases/tag/5.0.0)** on November 30, 2021.
+Newer minor versions and bugfix versions are available from
+[GitHub](https://github.com/tesseract-ocr/tesseract/releases/).
+
 Latest source code is available from [main branch on GitHub](https://github.com/tesseract-ocr/tesseract/tree/main).
 Open issues can be found in [issue tracker](https://github.com/tesseract-ocr/tesseract/issues),
 and [planning documentation](https://tesseract-ocr.github.io/tessdoc/Planning.html).