Format, typo and other fixes in 1990/tbr/README.md

The typo of most importance (maybe the only typo) was that when I linked
to the archive tarball I left off /archive in the link.

Noted in the judges' comments that in the smaller version provided by
the author the exit() returns void problem is fixed but it still uses
gets(), not fgets(). I don't see the reason to do that as it'll compile
and it's really only an aside and not the entry.

1990/tbr/README.md

@@ -1,16 +1,16 @@
 # Best Utility
 
-Byron Rakitzis	       
+Byron Rakitzis	         
 Princeton University   
 5707 Old Lodge Dr.     
 Houston, TX 77066      
 USA		       
 
-Sean Dorward
-Princeton University
-10274 Burleigh Cottage Lane
-Ellicott City, MD 21043
-USA
+Sean Dorward   
+Princeton University  
+10274 Burleigh Cottage Lane  
+Ellicott City, MD 21043  
+USA  
 
 
 ## To build:
@@ -28,7 +28,7 @@ due to the warning being interspersed with the program's output. Thank you Cody
 for your assistance!
 
 For the original version with `gets()` see the [archive
-tarball](/archive-1990.tar.bz2).
+tarball](/archive/archive-1990.tar.bz2).
 
 ## To run:
 
@@ -44,13 +44,15 @@ or ctrl-c (or kill it from another terminal :-) ).
 
 ## Try:
 
-	./tbr
-	ls -l tbr tbr.c
-	# notice how the following does not work:
-	ls tbr*
-	# try figuring out how this entry works in an editor:
-	vi tbr.c
-	# then figure out how to exit vi :-)
+```sh
+./tbr
+ls -l tbr tbr.c
+# notice how the following does not work:
+ls tbr*
+# try figuring out how this entry works in an editor:
+vi tbr.c
+# then figure out how to exit vi :-)
+```
 
 What happens if you try using `cd -` to return to previous directory? What about
 `cd` with no args?
@@ -68,22 +70,25 @@ Shell source was a major inspiration for the formation of the IOCCC back in
 The author supplied us with a slightly smaller unformatted version
 of the program which we include below:
 
-	    #define D ,close(
-	    char*c,q[512],m[256],*v[99],**u,*i[3];int f[2],p;main(){for(m[m[60]=m[62]=
-	    32]=m[*m=124[m]=9]=6;e(-8),gets(1+(c=q))||(exit(0),0);r(0,0))for(;*++c;);}
-	    r(t,o){*i=i[2]=0;for(u=v+98;m[*--c]^9;m[*c]&32?i[*c&2]=
-	    *u,u-v^98&&++u:3)if(!m[*c]){for(*++c=0;!m[*--c];);*--u=
-	    ++c;}u-v^98?strcmp(*u,"cd")?*c?pipe(f),o=f[1]:1,(p=fork())?e(p),o?
-	    r(o,0)D o)D*f):4,wait(0):(o?dup2(*f,0)D*f)D o):*i?1 D
-	    0),e(open(*i,0)):5,t?dup2(t,1)D t):i[2]?9 D
-	    1),e(creat(i[2],438)):2,e(execvp(*u,u))):e(chdir(u[1])*2):6;}
-	    e(x){x<0?write(2,"?\n$ "-x/4,2),x+1||(exit(1),0):5;}
-
+```c
+#define D ,close(
+char*c,q[512],m[256],*v[99],**u,*i[3];int f[2],p;main(){for(m[m[60]=m[62]=
+32]=m[*m=124[m]=9]=6;e(-8),gets(1+(c=q))||(exit(0),0);r(0,0))for(;*++c;);}
+r(t,o){*i=i[2]=0;for(u=v+98;m[*--c]^9;m[*c]&32?i[*c&2]=
+*u,u-v^98&&++u:3)if(!m[*c]){for(*++c=0;!m[*--c];);*--u=
+++c;}u-v^98?strcmp(*u,"cd")?*c?pipe(f),o=f[1]:1,(p=fork())?e(p),o?
+r(o,0)D o)D*f):4,wait(0):(o?dup2(*f,0)D*f)D o):*i?1 D
+0),e(open(*i,0)):5,t?dup2(t,1)D t):i[2]?9 D
+1),e(creat(i[2],438)):2,e(execvp(*u,u))):e(chdir(u[1])*2):6;}
+e(x){x<0?write(2,"?\n$ "-x/4,2),x+1||(exit(1),0):5;}
+```
 
+It has the `exit()` returns void fix but not the `gets()` to `fgets()` fix
+applied.
 
 ## Author's comments:
 
-Rot13:
+### Rot13:
 
     Guvf cebtenz vf n ehqvzragnel furyy. Vg qbrf v/b erqverpgvba, cvcrf
     naq pq. Vg syntf reebef ba snvyrq puqve'f, bcra'f, perng'f