doc: tweak manuals' top heading to improve info structure

hledger-lib/hledger_csv.m4.md

@@ -6,7 +6,11 @@ _man_({{
 # NAME
 }})
 
-CSV - how hledger reads CSV data, and the CSV rules file format
+_info_({{
+# hledger csv format
+}})
+
+How hledger reads CSV data, and the CSV rules file format.
 
 _man_({{
 # DESCRIPTION

hledger-lib/hledger_journal.m4.md

@@ -6,7 +6,11 @@ _man_({{
 # NAME
 }})
 
-Journal - hledger's default file format, representing a General Journal
+_info_({{
+# hledger journal format
+}})
+
+hledger's default file format, representing a General Journal.
 
 _man_({{
 # DESCRIPTION

hledger-lib/hledger_timeclock.m4.md

@@ -6,7 +6,11 @@ _man_({{
 # NAME
 }})
 
-Timeclock - the time logging format of timeclock.el, as read by hledger
+_info_({{
+# hledger timeclock format
+}})
+
+The time logging format of timeclock.el, as read by hledger.
 
 _man_({{
 # DESCRIPTION

hledger-lib/hledger_timedot.m4.md

@@ -6,7 +6,11 @@ _man_({{
 # NAME
 }})
 
-Timedot - hledger's human-friendly time logging format
+_info_({{
+# hledger timedot format
+}})
+
+hledger's human-friendly time logging format.
 
 _man_({{
 # DESCRIPTION

hledger-ui/hledger-ui.m4.md

@@ -6,7 +6,11 @@ _man_({{
 # NAME
 }})
 
-hledger-ui - terminal interface for the hledger accounting tool
+_info_({{
+# hledger-ui
+}})
+
+A terminal interface (TUI) for the hledger accounting tool.
 
 _man_({{
 # SYNOPSIS

hledger-web/hledger-web.m4.md

@@ -6,7 +6,11 @@ _man_({{
 # NAME
 }})
 
-hledger-web - web interface for the hledger accounting tool
+_info_({{
+# hledger-web
+}})
+
+A web interface (WUI) for the hledger accounting tool.
 
 _man_({{
 # SYNOPSIS

hledger/hledger.m4.md

@@ -17,7 +17,11 @@ _man_({{
 # NAME
 }})
 
-hledger - a command-line accounting tool
+_info_({{
+# hledger
+}})
+
+A command-line accounting tool for both power users and folks new to accounting.
 
 _man_({{
 # SYNOPSIS