Document bank account statements files.

doc/hackerbase.1

@@ -250,7 +250,38 @@ Show destroyed members in \fB-fees\fR action as well.
 Load all mailman list memberships to show them in members info.
 
 .SH "FILES"
+
+All the information about members is stored in in members file in the
+members directory which is also a git repository. Bank account
+statements are stored for each year separately for the purpose of
+updating the data from the bank and merged together for
+processing. Last checked bank transaction ID is stored in the checked
+transaction file.
+
+.SS Member Files
+
+.SS Bank Account Statements
+
+The CSV files with bank account statements are stored in the directory
+specified "bank-dir" key in \fBCONFIGURATION\fR or given as
+command-line option \fB-bankdir\fR.
+
+In the directory with bank account statements a subdirectory named
+"parts/" is maintained which contains the account statements for
+distinct years and only those which need an update are downloaded
+regularly. Any account statement for particular year is considered as
+up-to-date if it has been downloaded on January 2nd or later the
+following year.
+
+The format of the files is the same as the format provided by the Fio
+bank API.
+
+.SS Last Checked Transaction ID File
+
 .SH "CONFIGURATION"
+
+it is in /etc/hackerbase
+
 .SH "EXAMPLES"
 
 .SH "COPYRIGHT"