Added some explanation here.

README.md

@@ -1,2 +1,26 @@
 # MicrowaveEng-TI-84
 These are some small BASIC programs I wrote for solving some common microwave engineering problems with the TI-84 Plus. 
+
+## Requierements
+If you want to use this programs or even want to contribute follow these steps. You can use any type of editor you like e.g. vim, but you need this compiler: https://sourceforge.net/projects/tibasic/. It is possible to compile it yourselfe or just take some precompiled binaries. If you use Linux you might need to download wine, to use the precompiled windows binaries. 
+Moreover you need some software to flash the resulting .8xp files to the TI-84. You can use tilp for linux (http://lpg.ticalc.org/prj_tilp/) or you use TI software for windows. 
+
+## Compilation and Flashing
+As I am (and always will be) using linux this part is focused on the procedure under linux. 
+First you got to compile your code.
+```
+wine tibasic.exe source/PATCHA.til 
+```
+This step is the same under windows without the "wine string" of course.  
+Second you need to flash it.
+```
+sudo tilp
+```
+Make sure that your calculator is connected ;) That's all.
+
+## Programming
+One has to watch out a bit as certain statements look a bit different as they are in the calculator. E.g. one has to write 
+```
+[root]^2
+```
+to get a square root. All these tokens can be looked up under tokens.cpp, which I also provided in this repository. Happy coding!