diff --git a/.obsidian-git-data b/.obsidian-git-data
index f52411744..cc1b93bb0 100644
--- a/.obsidian-git-data
+++ b/.obsidian-git-data
@@ -1,2 +1,2 @@
-Thu Jun 24 2021 18:49:53 GMT+0200 (Central European Summer Time)
-Thu Jun 24 2021 18:48:54 GMT+0200 (Central European Summer Time)
\ No newline at end of file
+Thu Jun 24 2021 18:50:53 GMT+0200 (Central European Summer Time)
+Thu Jun 24 2021 18:49:54 GMT+0200 (Central European Summer Time)
\ No newline at end of file
diff --git a/annotation.md b/annotation.md
index 8cdbb4096..ea3aeceff 100644
--- a/annotation.md
+++ b/annotation.md
@@ -4,6 +4,7 @@
 	- [[pull]] [[hypothes.is]] [[web annotations]] [[memex]]
 - a [[book]].
 	- by [[remi kalir]] and [[antero garcia]]
-	- [[go]] https://mitpressonpubpub.mitpress.mit.edu/pub/da1ysqja/release/1
+	- [[preface]] https://mitpressonpubpub.mitpress.mit.edu/pub/da1ysqja/release/1
+	- [[go]] https://mitpressonpubpub.mitpress.mit.edu/annotation