fix alphametics docs

exercises/practice/alphametics/.docs/instructions.append.md

@@ -0,0 +1,29 @@
+# ignore me
+
+## Input
+
+Your script will receive the alphametic puzzle as a single string via
+standard input (stdin). The puzzle string follows the format
+`WORD1 + WORD2 + ... == RESULT`.
+
+For example:
+
+```text
+SEND + MORE == MONEY
+```
+
+## Output
+
+If the puzzle has a solution, print a single line consisting of
+space-separated `LETTER=DIGIT` pairs, sorted alphabetically by letter.
+
+For the example above, the output should be:
+
+```text
+D=7 E=5 M=1 N=6 O=0 R=8 S=9 Y=2
+```
+
+If the puzzle has multiple valid solutions, printing any one of them is
+acceptable.
+
+If the puzzle has no solution, print nothing (an empty line).

exercises/practice/alphametics/.docs/instructions.md

@@ -22,38 +22,8 @@ Replacing these with valid numbers gives:
 1 0 6 5 2
 ```
 
-This is correct because every letter is replaced by a different number and the
-words, translated into numbers, then make a valid sum.
+This is correct because every letter is replaced by a different number and the words, translated into numbers, then make a valid sum.
 
-Each letter must represent a different digit, and the leading digit of a
-multi-digit number must not be zero.
-
-## Input
-
-Your script will receive the alphametic puzzle as a single string via
-standard input (stdin). The puzzle string follows the format
-`WORD1 + WORD2 + ... == RESULT`.
-
-For example:
-
-```text
-SEND + MORE == MONEY
-```
-
-## Output
-
-If the puzzle has a solution, print a single line consisting of
-space-separated `LETTER=DIGIT` pairs, sorted alphabetically by letter.
-
-For the example above, the output should be:
-
-```text
-D=7 E=5 M=1 N=6 O=0 R=8 S=9 Y=2
-```
-
-If the puzzle has multiple valid solutions, printing any one of them is
-acceptable.
-
-If the puzzle has no solution, print nothing (an empty line).
+Each letter must represent a different digit, and the leading digit of a multi-digit number must not be zero.
 
 [alphametics]: https://en.wikipedia.org/wiki/Alphametics

exercises/practice/alphametics/.meta/config.json

@@ -15,7 +15,5 @@
       ".meta/example.awk"
     ]
   },
-  "icon": "crossword",
-  "source": "Wikipedia",
-  "source_url": "https://en.wikipedia.org/wiki/Alphametics"
+  "icon": "crossword"
 }