Fix word wrapping, mention dictionary.txt is also in the ci dir

Author: carols10cents

README.md

@@ -86,7 +86,8 @@ before we merge any in, but feel free to start!
 ## Spellchecking
 
 To scan source files for spelling errors, you can use the `spellcheck.sh`
-script available in the `ci` directory. It needs a dictionary of valid words, which is provided in
-`dictionary.txt`. If the script produces a false positive (say, you used word
-`BTreeMap` which the script considers invalid), you need to add this word to
-`dictionary.txt` (keep the sorted order for consistency).
+script available in the `ci` directory. It needs a dictionary of valid words,
+which is provided in `ci/dictionary.txt`. If the script produces a false
+positive (say, you used word `BTreeMap` which the script considers invalid),
+you need to add this word to `ci/dictionary.txt` (keep the sorted order for
+consistency).