diff -r f43bc4ce0d69 -r 79f6f9fa18c1 mercurial/help.py
--- a/mercurial/help.py	Sun Jun 28 17:32:32 2020 +0900
+++ b/mercurial/help.py	Mon Jun 22 13:32:20 2020 +0200
@@ -345,6 +345,11 @@
 
 internalstable = sorted(
     [
+        (
+            [b'bid-merge'],
+            _(b'Bid Merge Algorithm'),
+            loaddoc(b'bid-merge', subdir=b'internals'),
+        ),
         ([b'bundle2'], _(b'Bundle2'), loaddoc(b'bundle2', subdir=b'internals')),
         ([b'bundles'], _(b'Bundles'), loaddoc(b'bundles', subdir=b'internals')),
         ([b'cbor'], _(b'CBOR'), loaddoc(b'cbor', subdir=b'internals')),