Many README.md files updated

Formatting and other notes. Many more need to be checked for this but I
wanted these changes out of the way of git status to try and clean my
working changes.

2004/anonymous/README.md

@@ -32,6 +32,20 @@ don't have a "pgm" viewer then we suggest the "netpbm" toolkit
 graphics format that you can view - most graphical Web browsers
 can display PNG or JPEG images.
 
+BTW: if you haven't read The Lord of the Rings what are you waiting for? :-) You'll
+find out the source of the text above though you'll see that there are some
+circumflexes missing! That's okay though due to I/O of the entry and in earlier
+drafts sometimes the û with an umlaut had a H added to it. The real text is:
+
+> Ash nazg durbatulûk, ash nazg gimbatul, ash nazg thrakatulûk, agh
+> burzum-ishi krimpatul.
+
+which when translated from Black Speech means:
+
+> One Ring to rule them all, One Ring to find them,
+> One Ring to bring them all and in the darkness bind them.
+
+
 p.s. Frodo lives!
 
 ## Author's comments:
@@ -42,7 +56,7 @@ transcription to standard output as a portable graymap (PGM) file.
 
 The specific transcription mode is the Black Speech Tengwar mode, as
 used in the inscription on the One Ring. The program handles the
-following diagraphs:
+following digraphs:
 
 - "gh", "sh", "th": the corresponding tengwar are output for these
   specific sounds

2004/arachnid/README.md

@@ -26,6 +26,12 @@ make
 ./arachnid arachnid.info
 ```
 
+and then try:
+
+```sh
+./arachnid arachnid.c
+```
+
 ## Judges' comments
 
 The fun part comes when you realize that the maze scrolls.  The overall

2004/gavin/README.md

@@ -16,7 +16,7 @@ make
 ### To run:
 
 ```sh
-./prog
+./gavin
 ```
 
 ### Try:
@@ -59,7 +59,7 @@ sh
 Can have several shell windows:
 
 ```sh
-vi gavin.hint
+vi README.md
 ./prim
 ```
 

2004/hibachi/README.md

@@ -17,13 +17,13 @@ make
 ### To run:
 
 ```sh
-./hibachi-start.sh
+cd build; ./hibachi-start.sh
 ```
 
 ### Try:
 
 ```sh
-./hibachi-start.sh
+cd build; ./hibachi-start.sh
 ```
 
 Then use your web browser to visit http://localhost:8008/

2004/sds/README.md

@@ -23,7 +23,7 @@ make
 
 ```sh
 ./sds < sds.c > encoder.c
-cc -o encoder encoder.c
+make encoder
 ./encoder sds.hint <sds.c >sds_msg.c
 ```
 

2004/vik2/README.md

@@ -16,7 +16,7 @@ make
 ### To run:
 
 ```sh
-./prog
+./vik2
 ```
 
 ### Try: