Update html comment

src/server/web/views/base.pug

@@ -2,11 +2,16 @@ block vars
 
 doctype html
 
-!= '\n'
-!= '<!-- Thank you for using Misskey! -->\n'
-!= '<!-- If you are reading this message... how about joining the development of Misskey? -->\n'
-!= '<!-- https://github.com/misskey-dev/misskey -->'
-!= '\n'
+!= '<!--\n'
+!= '  _____ _         _           \n'
+!= ' |     |_|___ ___| |_ ___ _ _ \n'
+!= ' | | | | |_ -|_ -| \'_| -_| | |\n'
+!= ' |_|_|_|_|___|___|_,_|___|_  |\n'
+!= '                         |___|\n'
+!= ' Thank you for using Misskey!\n'
+!= ' If you are reading this message... how about joining the development?\n'
+!= ' https://github.com/misskey-dev/misskey'
+!= '\n-->\n'
 
 html