Update README.md

Library64/README.md

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-# TemplateWindows (MASM x64)
-A barebones template project to compile MASM x64 code for the Windows subsystem. It does not depend on any library nor SDK, so any dependency should be hand coded or added manually to the project configuration file.
+# Library64
+A collection of common procedures used by the projects in the repository. These are:
+
+* `GetCharA`: retrieves the keyboard pressed by the user (ANSI).
+* `GetCharW`: retrieves the keyboard pressed by the user (Unicode).
+* `GetStdHandleIn`: retrieves the handle to the standard input device.
+* `GetStdHandleOut`: retrieves the handle to the standard output device.
+* `StructInit`: initializes a struct with 0.
+* `StrCompareA`: compares two 1-byte strings (ANSI).
+* `StrCompareW`: compares two 2-byte strings (Unicode).
+* `StrCopyA`: copies a 1-byte string (ANSI).
+* `StrCopyW`: copies a 2-byte string (Unicode).
+* `StrLengthA`: computes the length of a 1-byte null-terminated string (ANSI).
+* `StrLengthW`: computes the length of a 2-byte null-terminated string (Unicode).
+* `WaitKey`: waits for the user to press any key.
 
 Copyright © 2021 by Arthurits Ltd. No commercial nor profit use allowed. This software is provided only for personal and not-for-profit use.
 Download latest release: [![GitHub release (latest by date)](https://img.shields.io/github/v/release/arthurits/AssemblySnippets)](https://github.com/arthurits/AssemblySnippets/releases)
 
 ## License
-Free for personal use.
-No commercial use allowed.
+Free for personal use and not-for-profit use. No commercial use allowed.