docs: add deprecation noticeHEADmaster

Amp-Thread-ID: https://ampcode.com/threads/T-019cc858-2bdd-716d-8668-e1fb47137cf3
Co-authored-by: Amp <amp@ampcode.com>

1 files changed, 5 insertions, 1 deletions

diff --git a/README.txt b/README.txt
index 861643f..5efb54b 100644
--- a/README.txt
+++ b/README.txt
@@ -1,3 +1,7 @@
+DEPRECATED
+    This project is no longer maintained. No further updates, bug fixes, or
+    feature additions will be made. Use at your own risk.
+
 NAME
     pingdomfetch - A small and humble tool to fetch availability stats from
     Pingdom and notify via E-Mail
@@ -202,5 +206,5 @@ PINGDOMFETCH OPTIONS
         Prints out the current version of pingdomfetch.
 
 AUTHOR
-    Paul Buetow - <http://pingdomfetch.buetow.org>
+    Paul Buetow