diff --git a/config/_default/params.toml b/config/_default/params.toml
index 4fc396d..ce1a563 100644
--- a/config/_default/params.toml
+++ b/config/_default/params.toml
@@ -57,7 +57,7 @@ show_categories = true
 [announcement]
 enable = true
 expire_days = 7
-content = "Invite [someone](/memos/HMC-Memo-005-Invite-Tree.pdf) to our community chat."
+content = "Seeking [volunteers](/memos/HMC-Memo-006-HMC-Library.pdf) for the HMC library."
 
 # seo meta data for OpenGraph / Twitter Card
 # seo module: https://github.com/gethugothemes/hugo-modules/tree/master/seo-tools/basic-seo
diff --git a/static/memos/HMC-Memo-006-HMC-Library.pdf b/static/memos/HMC-Memo-006-HMC-Library.pdf
new file mode 100644
index 0000000..999ce10
Binary files /dev/null and b/static/memos/HMC-Memo-006-HMC-Library.pdf differ