Update README.md

Added information on VSCode setup.

README.md

@@ -5,8 +5,23 @@ Basic algorithms are implemented in C
 * LU - decomposition "in place" where L and U are placed directly in A
 * A number of useful helper functions (norms, distances, creation and destruction of matrices, random matrix generation)
 
+IDE - Emacs
+=======================
+The code and Makefile will work with Emacs, given that typical packages for C/C++ development are installed (GCC, GDB and Gnu Make)
+
+IDE - VS Code
+=============
+The folder .vscode contains two files, launch.json and tasks.json which allow debugging with VS code. Three extensions are needed. In addition, GCC, GDB and GNU Make must be installed. 
+
+Install the following VSCode extensions:
+
+    * C/C++ by Microsoft (for code editing and IntelliSense).
+    * Makefile Tools (for Makefile support).
+    * CodeLLDB (or C/C++ Extension Pack) for GDB-based debugging support.
+
+
 
 Disclaimer
 ==========
-This code is very minimalistic and it is designed purely for illustration and educational purposes. The author is takes
-no responsibility resulting from its use.
+This code is very minimalistic and it is designed purely for illustration and educational purposes. The author takes
+absolutely no responsibility for damages resulting from its use.