improve 2020 year README.md files

Do not put author information into a code block.

Made some of the common markdown more consistent.

2020/burton/README.md

@@ -1,18 +1,16 @@
 # Best one-liner
 
-```
 Dave Burton
 <http://snox.net/ioccc>
 Twitter: @lv2jmp
-```
 
-## To build
+## To build:
 
 ```sh
 make
 ```
 
-### To run
+### To run:
 
 ```sh
 ./prog arg ...
@@ -20,7 +18,7 @@ make
 
 NOTE: this entry will dump core if you do not specify an argument.
 
-### Try
+### Try:
 
 ```sh
 ./prog 128
@@ -37,7 +35,7 @@ NOTE: this entry will dump core if you do not specify an argument.
 ./prog 128 128 128 128
 ```
 
-### Alternate code
+### Alternate code:
 
 By default, this code compiles for Little Endian machines.
 To compile for a Big Engian machine use:
@@ -48,7 +46,7 @@ make alt
 
 Use `prog_be` as you would `prog` above.
 
-## Judges' comments
+## Judges' comments:
 
 Can you determine why this shows strange output for `./prog 128 128`
 and `./prog 128 128 128 128` but not `./prog 128 128 128`?
@@ -73,7 +71,7 @@ This code may be tested by:
 make test
 ```
 
-## Author's comments
+## Author's comments:
 
 Invoke this with a single non-negative integer less than 256, and a useful transformation occurs.
 

2020/carlini/README.md

@@ -1,9 +1,7 @@
 # Best of show - abuse of libc
 
-```
 Nicholas Carlini <nicholas@carlini.com>  
 <https://nicholas.carlini.com>  
-```
 
 ## To build:
 

2020/endoh1/README.md

@@ -1,9 +1,7 @@
 # Most explosive
 
-```
 Yusuke Endoh
 Twitter: @mametter
-```
 
 ## To build:
 
@@ -30,7 +28,7 @@ make
 ./prog unwinnable.txt
 ```
 
-### Alternate code
+### Alternate code:
 
 An alternate version of this entry, prog.alt.c, is provided.  This alternate code lacks the additional rule to flag all unprobed cells.  See the Author's comments for more details.
 
@@ -42,7 +40,7 @@ make alt
 
 Use `prog.alt` as you would `prog` above.
 
-## Judges' comments
+## Judges' comments:
 
 When playing Minesweeper, a misclick might ruin a game, so why not leave the routine to the computer?
 This program automatically uncovers mines according to several rules, and leaves guessing (and applying

2020/endoh2/README.md

@@ -1,9 +1,7 @@
 # Best perspective
 
-```
 Yusuke Endoh  
 Twitter: @mametter  
-```
 
 # To build:
 

2020/endoh3/README.md

@@ -1,9 +1,7 @@
 # Most head-turning
 
-```
 Yusuke Endoh  
 Twitter: @mametter  
-```
 
 ## To build:
 
@@ -17,6 +15,13 @@ make
 ./prog
 ```
 
+### Try:
+
+```sh
+./run_clock
+# And watch closely for 15-20 seconds
+```
+
 ### Alternate code:
 
 An alternate version of this entry, `prog.alt.c`, is provided.  This alternate code uses Unicode letters.
@@ -29,13 +34,6 @@ make alt
 
 Use `prog.alt` as you would `prog` above.
 
-### Try:
-
-```sh
-./run_clock
-# And watch closely for 15-20 seconds
-```
-
 ## Judges' comments:
 
 You may be tempted to use a mirror. Resist the temptation! Try figuring out how the clock hands are drawn.

2020/ferguson1/README.md

@@ -1,10 +1,8 @@
 # Don't tread on me award
 
-```
 Cody Boone Ferguson <ioccc@xexyl.net>  
 <https://ioccc.xexyl.net>  
 Twitter: @xexyl  
-```
 
 ## To build:
 

2020/ferguson2/README.md

@@ -1,10 +1,8 @@
 # Most enigmatic
 
-```
 Cody Boone Ferguson <ioccc@xexyl.net>  
 <https://ioccc.xexyl.net>  
 Twitter: @xexyl  
-```
 
 ## To build:
 

2020/giles/README.md

@@ -1,9 +1,7 @@
 # Most phony
 
-```
 Edward Giles  
 <https://id523a.com/>  
-```
 
 ## To build:
 

2020/kurdyukov1/README.md

@@ -1,10 +1,8 @@
 # Best utility
 
-```
 Ilya Kurdyukov  
 <https://github.com/ilyakurdyukov>  
 Twitter: @ilyakurdyukov  
-```
 
 ## To build:
 
@@ -40,7 +38,7 @@ make alt
 
 Use `prog.alt` as you would `prog` above.
 
-### Selected Judges Remarks:
+## Judges' comments:
 
 This hash of a C code makes a hash out of input.
 Do you understand how?

2020/kurdyukov2/README.md

@@ -1,10 +1,8 @@
 # Least detailed
 
-```
 Ilya Kurdyukov  
 <https://github.com/ilyakurdyukov>  
 Twitter: @ilyakurdyukov  
-```
 
 ## To build:
 

2020/kurdyukov3/README.md

@@ -1,10 +1,8 @@
 # Bset slaml prragom
 
-```
 Ilya Kurdyukov  
 <https://github.com/ilyakurdyukov>  
 Twitter: @ilyakurdyukov  
-```
 
 ## To build:
 
@@ -43,7 +41,7 @@ make alt
 
 Use `prog.alt` as you would `prog` above.
 
-### Selected Judges Remarks:
+## Judges' comments:
 
 It is interesting how well smeonoe can raed txet wtih lots of tyops in it.
 How well can you raed porg.c, C prgoarm that is in the shpae of an SD card (or

2020/kurdyukov4/README.md

@@ -1,10 +1,8 @@
 # Best abuse of lámatyávë
 
-```
 Ilya Kurdyukov  
 <https://github.com/ilyakurdyukov>  
 Twitter: @ilyakurdyukov  
-```
 
 ## To build:
 
@@ -34,7 +32,7 @@ make
 Too many identical strings if the context length is small.
 -- Author*
 
-### Selected Judges Remarks:
+## Judges' comments:
 
 We were able to write our own program performing the same trick
 using the (still non-standard, for some reason) library function `memmem`,

2020/otterness/README.md

@@ -1,9 +1,7 @@
 # Most percussive
 
-```
 Nathan Otterness  
 <https://github.com/yalue>  
-```
 
 ## To build:
 

2020/tsoj/README.md

@@ -1,9 +1,7 @@
 # Most misleading indentation
 
-```
 tsoj <tsoj.tsoj@gmx.de>  
 <https://gitlab.com/tsoj>  
-```
 
 ## To build:
 

2020/yang/README.md

@@ -1,9 +1,7 @@
 # Best abuse of CPP
 
-```
 Don Yang  
 <http://uguu.org/>  
-```
 
 ## To build:
 
@@ -13,6 +11,12 @@ make
 
 ### To run:
 
+```sh
+./prog [PIN] < input.txt > output.c
+```
+
+### Try:
+
 ```sh
 echo "International Obfuscated C Code Contest 2020" | ./prog 23209 > code.c