diff --git a/1990/stig/README.md b/1990/stig/README.md
index b82484aae..4f6d90a53 100644
--- a/1990/stig/README.md
+++ b/1990/stig/README.md
@@ -1,55 +1,55 @@
 # Strangest Abuse of the Rules
 
-	Stig Hemmer
-	Norwegian Institute of Technology
-	N-7034 Trondheim-NTH
-	Norway 
+Stig Hemmer  
+Norwegian Institute of Technology  
+N-7034 Trondheim-NTH  
+Norway   
 
 ## To build:
 
-        make all
+```sh
+make all
+```
 
-## To run
+## To run:
 
-	make all
+```sh
+make all
+```
 
 NOTE: that's not a typo or mistake but one can also do:
 
-	./o
+```sh
+./o
+```
 
 ## Judges' comments
 
 We changed the alias that the author's suggested alias from a
 C-shell alias to a zsh alias.
 
-Note that shst.c is renamed to stig.c in the distribution.
+Note that `shst.c` is renamed to [stig.c](stig.c) in the distribution.
 
-WARNING: This program's 'how to compile' is too specific to a particular
-shell.  The obfuscation of this program to more related to
-shell obfuscation than C obfuscation.  This type of entry will 
-not be permitted in future contests.
+WARNING: This program's `how to compile` is too specific to a particular shell.
+The obfuscation of this program is more related to shell obfuscation than C
+obfuscation.  This type of entry will not be permitted in future contests.
 
-## Author's comments
+## Author's comments:
 
-If you like shell programming you may also admire my
-creative quoting. (I use echo to create an alias
-which when run calls cc with the -D option to create a
-C macro with double quotes in it. ARRRRRGGGHHH!)
+If you like shell programming you may also admire my creative quoting. (I use
+echo to create an alias which when run calls cc with the -D option to create a C
+macro with double quotes in it. ARRRRRGGGHHH!)
 
-The program is totally portable, but the compile
-commands are very shell specific so don't be TOO mad
-at me if they don't work for you.
+The program is totally portable, but the compile commands are very shell
+specific so don't be TOO mad at me if they don't work for you.
 
-If you want to put these commands in a Makefile you
-must add 4 - four - backslashes at the end on first
-line. (At least that's what works here.)
+If you want to put these commands in a Makefile you must add 4 - four -
+backslashes at the end on first line. (At least that's what works here.)
 
-If everything works correctly it create an executable
-named c which checks whether your compiler supports
-nested comments. I've stolen the `"/*/*/0*/**/1"` from
-somewhere so don't give me any points for it. Of
-course neither ANSI nor K&R support nested comments
-when properly implemented, but what the heck. 
+If everything works correctly it create an executable named `o` which checks
+whether your compiler supports nested comments. I've stolen the `"/*/*/0*/**/1"`
+from somewhere so don't give me any points for it. Of course neither ANSI nor
+K&R support nested comments when properly implemented, but what the heck.
 
 ## Copyright and CC BY-SA 4.0 License: