improve 404

Author: Bhupesh-V

book.toml

@@ -1,5 +1,5 @@
 [book]
-authors = ["DevelopersIndia Community"]
+authors = ["developersIndia Community"]
 language = "en"
 multilingual = false
 src = "src"
@@ -15,7 +15,7 @@ git-repository-icon = 'fa-github'
 reddit-url = 'https://reddit.com/r/developersIndia'
 edit-url-template = 'https://github.com/developersIndia/wiki/edit/main/{path}'
 site-url = 'https://wiki.developersindia.in'
-# input-404 = 'not-found.md'
+# input-404 = '404.md'
 
 [output.html.print]
 enable = false    # include support for printable output

src/404.md

@@ -0,0 +1,8 @@
+<center>
+
+# Woah buddy, you're lost
+<small>(aren't we all?)</small>
+
+The page you're looking for isn't here. It's possible it has been moved to a different URL, use the search bar or the navigation menu in that case.
+
+</center>