Wrote all the future features I could think of into the manpage.

remwharead.1.adoc

@@ -14,26 +14,46 @@ remwharead - Remember what you read, and when
 
 == SYNOPSIS
 
-*remwharead*  [_url_|_--version_] [_arguments_]
+*remwharead* [*-t* _tags_] _URL_
+
+*remwhared* *-e* _format_ [*-f* _file_] [*-s* _start_,_end_]
 
-////
 == DESCRIPTION
-////
+
+*remwhared* saves URLs of things you read in a database along with the current
+ date and time, title, description, the full text of the page and optional tags.
 
 == OPTIONS
 
+*-t* _tags_, *--tags*=_tags_::
+Add tags to _URL_, delimited by commas.
+
+*-e* _format_, *--export*=_format_::
+Export to _format_. Possible values are _csv_ and _asciidoc_.
+
+*-f* _file_, *--file*=_file_::
+Save output to _file_. Default is stdout.
+
+*-s* _start_,_end_, *--span*=_start_,_end_::
+Only export entries between _start_ and _end_. _start_ and _end_ are date and
+time representations according to ISO 8601.
+
 *--version*::
 Print version, copyright and license.
 
-////
 == EXAMPLES
 
+`remwhared -t tag1,tag2 https://example.com/article.html`
+
+`remwhared -e asciidoc -f out.adoc -s 2019-04-01,2019-05-31`
+
+`remwhared -e asciidoc | asciidoctor --backend=html5 --out-file=out.html -`
+
 == FILES
 
-* *Configuration file*: `${XDG_CONFIG_HOME}/remwharead.cfg`
+* *Database*: `${XDG_DATA_HOME}/remwharead.sqlite`
 
-`${XDG_CONFIG_HOME}` is usually `~/.config`.
-////
+`${XDG_DATA_HOME}` is usually `~/.local/share`.
 
 == REPORTING BUGS