doc: update changelogs

[ci skip]

CHANGES.md

@@ -1,6 +1,8 @@
 General/project-related changes in the hledger project. 
 For package-specific changes, see the package changelogs.
 
+# 0a31ef84
+
 # 9bc88727
 
 - fixed pandoc typography conversion in web manuals (#954).

hledger-api/CHANGES.md

@@ -1,6 +1,8 @@
 User-visible changes in hledger-api.
 See also the hledger changelog.
 
+# 0a31ef84
+
 # 1e5e30ae
 
 - use hledger 1.12.99

hledger-lib/CHANGES.md

@@ -1,6 +1,8 @@
 Internal/api/developer-ish changes in the hledger-lib package.
 For user-visible changes, see the hledger package changelog.
 
+# 0a31ef84
+
 # 1e5e30ae
 
 added: 

hledger-ui/CHANGES.md

@@ -1,6 +1,8 @@
 User-visible changes in hledger-ui.
 See also the hledger changelog.
 
+# 0a31ef84
+
 # 1e5e30ae
 
 - on posix systems, control-z suspends the program

hledger-web/CHANGES.md

@@ -1,6 +1,8 @@
 User-visible changes in hledger-web.
 See also the hledger changelog.
 
+# 0a31ef84
+
 # 1e5e30ae
 
 - use hledger 1.12.99

hledger/CHANGES.md

@@ -1,6 +1,8 @@
 User-visible changes in the hledger command line tool and library.
 
 
+# 0a31ef84
+
 # 1e5e30ae
 
 - journal: account directive: account sort codes like `account 1000`