#204-create PCS documentation

intermediate commit.

Author: schmouk

README.md

@@ -1,2 +1,33 @@
-# cpp-strings
+# Library cpp-strings [![license](http://img.shields.io/github/license/schmouk/cpp-strings.svg?style=plastic&labelColor=blueviolet&color=lightblue)](https://github.com/schmouk/cpprandlib/license)  [![Latest release](http://img.shields.io/github/release/schmouk/cpp-strings.svg?style=plastic&labelColor=blueviolet&color=success)](https://github.com/schmouk/cpprandlib/releases)  [![code_coverage](https://img.shields.io/badge/code_coverage-100%25-success?style=plastic&labelColor=blueviolet)]()  [![tests](https://img.shields.io/badge/tests-passing-success?style=plastic&labelColor=blueviolet)]
+
 What if c++ strings where as easy to use as Python strings?
+
+Copyright © 2023-2025 Philippe Schmouker  
+contact - ph (dot) schmouker (at) gmail (dot) com
+
+
+---
+## License
+
+    Library cpp-strings
+    "What if c++ strings where as easy to use as Python strings?"
+
+    Copyright (C) 2023-2025 Philippe Schmouker
+    contact - ph (dot) schmouker (at) gmail (dot) com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation,  either version 3  of the License,  or
+    (at your option) any later version.
+
+    This program is distributed in the hope  that  it  will  be  useful,
+    but  WITHOUT  ANY  WARRANTY;  without  even  the implied warranty of
+    MERCHANTABILITY  or  FITNESS  FOR  A  PARTICULAR  PURPOSE.  See  the
+    GNU General Public License for more details.
+
+    You should have received a copy  of  the  GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+
+---
+## Intro