Update README

Author: a4z

README.md

@@ -1,8 +1,28 @@
 # astr, compile-time array string
 
-Example code related to the blog post ['Compile time string literals processing, but why'](https://a4z.gitlab.io/blog/2023/11/04/Compiletime-string-literals-processing.html).
+An (opinionated) compile-time string processing library for C++20 and above.
 
-There are two examples, getting short file names and getting type names.
+If wanted, the code can easily be adapted to C++17.
+Feel free to open an issue if you need help with that.
 
-- File names work as described in the blog post.
-- Type names work for a set of use cases but is not a universal solution or replacement for reflections.
+**There are two use-cases demonstrating what this can be used for.**
+
+## Getting short file names as compile time strings
+
+Reproducible and fix size 'strings' of __FILE__  at compile time.
+
+The code is related to the blog post ['Compile time string literals processing, but why'](https://a4z.gitlab.io/blog/2023/11/04/Compiletime-string-literals-processing.html), which describes some more details about this feature.
+
+## Getting type names as compile time strings
+
+There are many ways of faking reflections in C++ to get a typename, and there are several more or less famouse library solutions around this.
+
+The code here shows how that actually works, without being a fully fletched 'library'.
+
+There is also enough functionality to get the type name as a compile-time string and doing customizations that this can be used to solve some real world use cases.
+
+## Documentation
+
+For now, please have a look at the files in [the testing directory](./tests/base).
+
+They should be easy to understand and show how to use the code.