Fix typos, formatting and thank yous (add links)

In some files changed the formatting was fixed to be a proper markdown
file.

There were some typos including that some README.md files that linked to
/winners.html#Cody_Boone_Ferguson actually linked to the non-existent
file /years which obviously would not work.

I also added links to the rest of the places I have fixed entries (but
see below) and I did the same for Yusuke Endoh's fixes.

As well apparently one entry I thought he fixed to compile under modern
systems does not seem to so that entry will have to be revisited another
time. That entry was 1993/jonth.

Those are the main changes here if not all of them.

1986/marshall/README.md

@@ -11,11 +11,12 @@ Paoli, PA.
         make all
 
 
-NOTE: Cody Boone Ferguson got this to compile and work with clang. It did not
-work with clang because it is more strict about the second and third args to
-main() and the third arg was an int. He notes that he tried to keep the picture
-as close to the original. The line lengths are the same but some spaces had to
-be changed to non-spaces. Thank you Cody for your help!
+[Cody Boone Ferguson](/winners.html#Cody_Boone_Ferguson) got this to
+compile and work with clang. It did not work with clang because it is more
+strict about the second and third args to main() and the third arg was an int.
+He notes that he tried to keep the picture as close to the original. The line
+lengths are the same but some spaces had to be changed to non-spaces. Thank you
+Cody for your help!
 
 ## Try: