fix Makefile and README.md for 2004/kopczynski

2004/kopczynski/Makefile

@@ -102,7 +102,7 @@ CINCLUDE=
 #CINCLUDE= -include stdlib.h
 #CINCLUDE= -include stdio.h
 #CINCLUDE= -include stdlib.h -include stdio.h
-#CINCLUDE= -I ${X11_INCDIR}
+#CINCLUDE= -I ${X11_INCDIR} -I ${X11_INCDIR}/X11
 #CINCLUDE= `${SDL2_CONFIG} --cflags`
 
 # Optimization

2004/kopczynski/README.md

@@ -8,32 +8,44 @@
 
     http://www.mimuw.edu.pl/~erykk/
 
-## To build:
+# To build:
 
-        make all
+```sh
+make
+```
 
-### To run
+### To run:
 
+```sh
 ./kopczynski < input_file
+```
 
 ### Try:
 
+```sh
 ./kopczynski < kopczynski-8a
 ./kopczynski < kopczynski-8b
 ./kopczynski < kopczynski-8c
 ./kopczynski < kopczynski-9
 ./kopczynski < kopczynski-10
 ./kopczynski < kopczynski-11
+```
 
 ### Alternate code
 
 The judges modified the program to print its result.  The original
 program returned the result as an exit code:
 
+```sh
 make alt
+```
 
+Then try:
+
+```sh
 ./kopczynski.alt < kopczynski-10
 echo $?
+```
 
 ## Judges' comments