add list of supported tags

Author: thisisaaronland

README.md

@@ -189,6 +189,99 @@ For a complete example consult the [www/javascript/index.js](www/javascript/inde
 
 As of this writing neither wasm binary will return any kind of useful error information if a problem is encountered. Error reporting will be logged (to the browser's console log) but in the event of an error the response value for both wasm binaries will be `null`. This is not ideal and will be addressed in future releases.
 
+## Supported tags
+
+The following EXIF tags are supported by this package. This list was generated by the `tags-supported` tool.
+
+```
+Artist
+AsShotProfileName
+BodySerialNumber
+CFAPattern
+CFAPlaneColor
+CameraCalibrationSignature
+CameraOwnerName
+CameraSerialNumber
+ClipPath
+Copyright
+DNGBackwardVersion
+DNGPrivateData
+DNGVersion
+DateTime
+DateTimeDigitized
+DateTimeOriginal
+DateTimeOriginal
+DocumentName
+DotRange
+GPSAltitudeRef
+GPSDateStamp
+GPSDestBearingRef
+GPSDestDistanceRef
+GPSDestLatitudeRef
+GPSDestLongitudeRef
+GPSImgDirectionRef
+GPSLatitudeRef
+GPSLongitudeRef
+GPSMapDatum
+GPSMeasureMode
+GPSSatellites
+GPSSpeedRef
+GPSStatus
+GPSTrackRef
+GPSVersionID
+HostComputer
+ImageDescription
+ImageHistory
+ImageID
+ImageResources
+ImageUniqueID
+InkNames
+InteroperabilityIndex
+LensMake
+LensModel
+LensSerialNumber
+LocalizedCameraModel
+Make
+Model
+NoiseProfile
+OriginalRawFileName
+PreviewApplicationName
+PreviewApplicationVersion
+PreviewDateTime
+PreviewSettingsDigest
+PreviewSettingsName
+ProcessingSoftware
+ProfileCalibrationSignature
+ProfileCopyright
+ProfileHueSatMapData1
+ProfileHueSatMapData2
+ProfileLookTableData
+ProfileName
+ProfileToneCurve
+RawDataUniqueID
+RelatedImageFileFormat
+RelatedSoundFile
+SecurityClassification
+Software
+SpectralSensitivity
+SpectralSensitivity
+SubSecTime
+SubSecTimeDigitized
+SubSecTimeOriginal
+TIFFEPStandardID
+TargetPrinter
+TimeZoneOffset
+UniqueCameraModel
+XClipPathUnits
+XMLPacket
+XPAuthor
+XPComment
+XPKeywords
+XPSubject
+XPTitle
+YClipPathUnits
+```
+
 ## See also
 
 * https://github.com/dsoprea/go-exif