minesweeper example added

src/test/X11/mines/Readme.md

@@ -0,0 +1,22 @@
+Build by typing
+
+# make
+
+Start Minesweeper with
+./Minesweeper a b c ~
+       
+  a Level (1-100);
+  b Row/Collumns of area;
+  c Number of bombs in area.
+
+  
+ During the game, the following keys are availiable:
+
+         8 ... up
+         2 ... down
+         4 ... left
+         6 ... right
+         5 ... mark bomb (where you think one is)
+         Space ... open field
+         q ... quit
+