added images for email signature

e7e60029 · Wolfgang Knopki · 91a7617f · e7e60029 · e7e60029 · e7e60029
Commit e7e60029 authored Jul 03, 2020 by Wolfgang Knopki
--- a/img/signature/fb_bw.png
+++ b/img/signature/fb_bw.png
--- a/img/signature/hft_logo.png
+++ b/img/signature/hft_logo.png
--- a/img/signature/inno_bw.png
+++ b/img/signature/inno_bw.png
--- a/img/signature/instagram_bw.png
+++ b/img/signature/instagram_bw.png
--- a/img/signature/snapchat_bw.png
+++ b/img/signature/snapchat_bw.png
--- a/img/signature/twitter_bw.png
+++ b/img/signature/twitter_bw.png
--- a/img/signature/youtube_bw.png
+++ b/img/signature/youtube_bw.png