Bonus round: Hide Roff

Bonus round! 4 points for a total of 9 points! Well done, play again!

Author: Lamparter

.gitattributes

@@ -52,5 +52,9 @@ tests/suite/file_without_BOM.txt -text
 *.bat linguist-detectable=false
 *.cmd linguist-detectable=false
 *.ps1 linguist-detectable=false
+*.1 linguist-detectable=false
+*.2 linguist-detectable=false
+*.3 linguist-detectable=false
+*.4 linguist-detectable=false
 
 *.html linguist-documentation=true