add admonition to home page

Amolith created

Change summary

content/_index.md | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

Detailed changes

content/_index.md 🔗 

@@ -82,9 +82,11 @@ preferred will _always_ be email. In order of preference…
 [Libera]: https://libera.chat/
 [NixNet]: https://docs.nixnet.services/IRC
 
+{{< adm type="tip" >}}
 If you choose to contact me over XMPP, please use OMEMO encryption and
-manually verify the following fingerprints. Any other keys should be
+manually verify the above fingerprints. Any other keys should be
 marked as _untrusted_.
+{{< /adm >}}
 
 ```text
 Desktop:   356C7395 B6A79738 DCE819CF E49F3146 9DD3E4E3 C753CF13 140358B8 7540A969