update 404 page

layouts/404.html

@@ -8,15 +8,15 @@
   </div>
   <div class="mt-8 prose dark:prose-invert">
     <strong>Please use the search on this website!</strong><br />
-    You may find what you search. Click on the search icon (🔍 top right corner) or hit
+    You may find what you search. Click on the magifying glass 🔍 in the top
-    <kbd>/</kbd> on your keyboard to open the search.
+    right corner or hit <kbd>/</kbd> (that is usually <kbd>Shift + 7</kbd>
+    on a german layout) on your keyboard to open the search.
   </div>
   <div class="mt-8 prose dark:prose-invert">
-    There are still a lot of URLs in search engines index that refer to old pages
+    There are still a lot of URLs in search engines that refer to old pages
     and I'm trying a new method to get them removed from search results. This means,
     that I do not redirect 404 errors as 301 errors to the new location as no search
-    engine seems to update their indexes with the new URLs...<br />
+    engine seems to update their indexes with the new URLs. The negative effect is,
-    The negative effect is, that you have to search the updated URL by hand. What a
+    that you have to search the updated URL by hand.
-    cruel world that is 😢
   </div>
 {{ end }}