Changes:
+ Swap `EXIV2 GROUPS, TYPES AND VALUES` and `MODIFY` COMMANDS`
+ Move `Exiv2 key syntax` to top of section
+ Swap `AUTHORS` and `SEE ALSO` sections
+ Fix text and formatting
+ Add `PREVIEW IMAGES AND THUMBNAILS`, `ICC PROFILES` and
`IMAGE COMMENTS` sections
+ Update FILE TABLE
+ Renamed "raw" XMP metadata to "raw" metadata to prevent confusion
with "raw" XMP
Changes:
+ Update BMFF types in FILE TYPES section
+ Add text in FILE TYPES explaining formats
+ Change IPTC datasets and XMP properties to IPTC and XMP tags
+ Fix text and formatting
Update the `COMMANDS` and `EXIV2 GROUPS, TYPES AND VALUES` sections,
including any related sections.
Changes:
+ Add new examples and update text
+ Fix spelling errors
Changes:
+ Add missing tag groups in Exif list and reformat
+ Update text explaining Exiv2 types
+ Add text explaining tag groups, multiple elements and date/time formats
+ Format closer to manpage standard
Changes:
+ Add long option format in text, as this is easier to understand
+ Indent command line output
+ Add bold for options and underline for parameters
+ Add text and examples
+ http to https
+ Update SEE ALSO references
+ Replace short options with long form, to make reading easier
+ Rename `--modify` parameter from `file` to `cmdfile` to prevent
confusion with the main parameter called `file`
Changes:
+ Add tags. Rename Exiftool `SequenceLength` tags to `SequenceLength1`
and `SequenceLength2`, to prevent a name clash.
+ Update docs and manpage.
Source: [Exiftool](https://exiftool.org)