Merge pull request #1 from Apress/appendix-e

Add Appendix E

README.md

@@ -1,4 +1,4 @@
-# Apress Source Code
+# Apress Source Code and Appendix
 
 This repository accompanies [*The Common Lisp Condition System*](https://www.apress.com/9781484261330) by Michał "phoe" Herda (Apress, 2020).
 
@@ -7,6 +7,8 @@ This repository accompanies [*The Common Lisp Condition System*](https://www.apr
 
 The sources are split into sources for the first part of the book and the appendices (the [`Sources - TCLCS`](Sources%20-%20TCLCS/) folder) and sources for Portable Condition System (PCS, the [`Sources - PCS`](Sources%20-%20PCS/) folder). Note that the sources for PCS are for version 1.1.0 of the library and will not be updated here; for contributing to PCS, please see [the main repository of the project](https://github.com/phoe/portable-condition-system).
 
+The [`Appendix E`](Appendix%20E) folder contains **Appendix E - Discussing the Common Lisp Condition System**, an online-only appendix that contains additional material for Chapter 4 of the book that did not make it into the final text due to time constraints.
+
 Download the files as a zip using the green button, or clone the repository to your machine using Git.
 
 ## Releases
@@ -19,6 +21,8 @@ The source code for TCLCS is licensed under the CC0 license and placed in the pu
 
 The source code for Portable Condition System is licensed under the CC0 license and placed in the public domain, except for the test suite, which is licensed under the MIT license. Please see the `README` and `LICENSE` files in the respective subfolders of this repository for details.
 
+Appendix E as a whole is licensed under the CC0 license and placed in the public domain.
+
 ## Contributions
 
 See the file Contributing.md for more information on how you can contribute to this repository.