Format fixes in html files of 2020

2020/ferguson2/README.md

@@ -217,21 +217,18 @@ With my entry we can complete the loop!
 The author [Nathan Sidwell](../../authors.html#Nathan_Sidwell) of the [1992 Worst
 Abuse of the Rules][] had this to say about his program:
 
-```
-    This program is a hello world text encrypter/decrypter. It uses an
-    [enigma](https://www.cryptomuseum.com/crypto/enigma/index.htm) (I think) style
-    encryption algorithm, where the encryption key character is modified by a value,
-    determined from the previous character.  Non-printable characters (those with
-    ASCII values `< ' '` or `> 0x7e`) are passed unaltered, thus any kind of file
-    may be successfully processed, but if the original is printable, the processed
-    file will be too. The input is read from stdin, and the output presented to
-    stdout. The key, a text string, is presented as a command argument. This is
-    optional, and if omitted, the file is self-{de,en}crypted. To specify
-    decryption, a `-` should be given before the key. (Actually encryption and
-    decryption proper inverse operations, so you can use decrypt to scramble and
-    encrypt to descramble, if you're perverse.)
-```
-
+> This program is a hello world text encrypter/decrypter. It uses an
+[enigma](https://www.cryptomuseum.com/crypto/enigma/index.htm) (I think) style
+encryption algorithm, where the encryption key character is modified by a value,
+determined from the previous character.  Non-printable characters (those with
+ASCII values `< ' '` or `> 0x7e`) are passed unaltered, thus any kind of file
+may be successfully processed, but if the original is printable, the processed
+file will be too. The input is read from stdin, and the output presented to
+stdout. The key, a text string, is presented as a command argument. This is
+optional, and if omitted, the file is self-{de,en}crypted. To specify
+decryption, a `-` should be given before the key. (Actually encryption and
+decryption proper inverse operations, so you can use decrypt to scramble and
+encrypt to descramble, if you're perverse.)
 
 But the Enigma algorithm is more complex than that and my entry can encipher
 (and by extension decipher) text in the manner of the Enigma machines of the
@@ -862,7 +859,7 @@ change the rest of the text. If you wish to see how I went about this see
 [recode.c]: recode.c
 [obfuscation.html]: obfuscation.html
 [obfuscation.txt]: obfuscation.txt
-[obfuscation.key]: obfuscation.key
+[obfuscation.key]: %%REPO_URL%%/2020/ferguson2/obfuscation.key
 [Tony Sale's pages on The Enigma cipher machine]: https://web.archive.org/web/20200621180323/http://www.codesandciphers.co.uk/enigma/index.htm
 [Technical Details of the Enigma Machine]: https://web.archive.org/web/20200710094303/http://users.telenet.be/d.rijmenants/en/enigmatech.htm
 [The German Enigma Cipher Machine]: https://web.archive.org/web/20200710094243/http://users.telenet.be/d.rijmenants/en/enigma.htm