diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 95c8b6ed5..6b8772e91 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -345,8 +345,8 @@ there are standard reports, which extract useful data from the Journal or Ledger
 
 Here's a diagram of the main data model:
 
-
- +
+
+
+ -
 
 
 
- -
- -
- +
+ +
+ +
+ }})
 
diff --git a/hledger-web/hledger-web.m4.md b/hledger-web/hledger-web.m4.md
index f9786ccf9..e04ff35a0 100644
--- a/hledger-web/hledger-web.m4.md
+++ b/hledger-web/hledger-web.m4.md
@@ -28,10 +28,10 @@ _web_({{
 .highslide-caption {color:white; background-color:black;}
 
 }})
 
diff --git a/hledger-web/hledger-web.m4.md b/hledger-web/hledger-web.m4.md
index f9786ccf9..e04ff35a0 100644
--- a/hledger-web/hledger-web.m4.md
+++ b/hledger-web/hledger-web.m4.md
@@ -28,10 +28,10 @@ _web_({{
 .highslide-caption {color:white; background-color:black;}