Update 1987 winning entries' README.md files

Format and typo fixes.

1987/lievaart/README.md

@@ -2,21 +2,24 @@
 
 Roemer B. Lievaart  
 VU Informatica  
-Churchilllaan 173-IV  
-Amsterdam, The Netherlands  
+Churchilllaan 173-IV    
+Amsterdam, The Netherlands   
 
 ## To build:
 
-        make all
+```sh
+make all
+```
 
 NOTE: The original entry may be built with "make alt" if you have an old enough
 compiler.
 
 ## To run:
 
-	./lievaart
-	# enter a level and start playing as described below
-
+```sh
+./lievaart
+# enter a level and start playing as described below
+```
 
 NOTE: if you enter invalid input the program will enter an infinite loop
 displaying a string like `"You:"` repeatedly.
@@ -25,8 +28,10 @@ displaying a string like `"You:"` repeatedly.
 
 To see what it would have looked like without the size restrictions:
 
-	./lievaart2
-	# enter a level and start playing as described below
+```sh
+./lievaart2
+# enter a level and start playing as described below
+```
 
 
 ## Judges' remarks:
@@ -34,19 +39,19 @@ To see what it would have looked like without the size restrictions:
 We believe that you too will be amazed at just how much power Mr. Lievaart
 packed into 1024 bytes!
 
-This Plays the game of reversi (Othello)!  Compile and run.  It then
+This Plays the game of Reversi (Othello)!  Compile and run.  It then
 asks for a playing level. Enter 0-10 (easy-hard).  It then asks for
 your move. A move is a number within 11-88, or a 99 to pass.  Illegal
 moves (except for an illegal pass) are rejected.  Then the computer
 does its move (or a 0 to pass), until the board is full.
 
 It plays rather well, for such a small program!  Lievaart had to leave out the
-board printing routine, so you'll have to take a real game board to
-play it. ...  Also due to space-limitations (the rules for 1987 had a
-limit of 1024 byes), Lievaart took out the passing-handler, which
-makes its ending-game rather poor.  But further it knows all the
-rules, uses alpha-beta pruning, and it plays f.i. on mobility(!).
-Most important: it can play a pretty good game of Reversi!
+board printing routine, so you'll have to take a real game board to play it (or
+see below). ...  Also due to space-limitations (the rules for 1987 had a limit
+of 1024 byes), Lievaart took out the passing-handler, which makes its
+ending-game rather poor.  But further it knows all the rules, uses alpha-beta
+pruning, and it plays f.i. on mobility(!).  Most important: it can play a pretty
+good game of Reversi!
 
 The Author was kind enough to supply the fully functional version of the
 program.  The file lievaart2.c contains what the program would have
@@ -56,7 +61,7 @@ logic and displays the board after each move!
 
 ## Author's remarks:
 
-No comments were provided by the author.
+No remarks were provided by the author.
 
 ## Copyright and CC BY-SA 4.0 License: