diff --git a/1989/jar.1/README.md b/1989/jar.1/README.md
index 5a53646d5..2ac24e188 100644
--- a/1989/jar.1/README.md
+++ b/1989/jar.1/README.md
@@ -1,4 +1,4 @@
-## Strangest abuse of the rules:
+# Strangest abuse of the rules:
 
 	Jari Arkko
 	Laboratory of Information Processing Science
@@ -7,10 +7,14 @@
 	02150 Espoo
 	Finland
 
+# To build and run:
+
+    make clobber all
+
 ## Judges notes:
 
-On many systems the compiler will not allow you to send the
-object file to /dev/tty.  The author suggested:
+On many systems the compiler will not allow you to send the object file to
+/dev/tty.  The author suggested:
 
 	cc -c -o /dev/tty jar.1.c
 
@@ -19,19 +23,16 @@ On systems that have symbolic links, we suggest:
 	ln -s /dev/tty jar.1.o
 	cc -c jar.1.c
 
-if your system has symbolic links.  The shell script run
-by the Makefile simply cats the .o file to the terminal
-which can be used as a last resort.
+As a last resort the scripts provided simply cat the .o file to the terminal.
 
-Abuse of the rules winners usually result in a change of the
-rules.  Starting in 1990, compiling entries must result an
-regular file which can be executed.
+Abuse of the rules winners usually result in a change of the rules.  Starting in
+1990, compiling entries must result an regular file which can be executed.
 
 ## Selected notes from the author:
 
-This program is (supposedly) the smallest C program able to
-print "Hello world.". The compilation itself produces the
-desired printout and the program need not be actually run.
+This program is (supposedly) the smallest C program able to print "Hello
+world.". The compilation itself produces the desired printout and the program
+need not be actually run.
 
 ## Copyright and CC BY-SA 4.0 License: