Merge pull request bennoleslie#11 from DenisCarriere/patch-1

Update README format to Markdown

README.md

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+# Python EXIF parsing
+
+**pexif** is a Python library for  parsing and more importantly
+editing EXIF data in JPEG files.
+
+This grew out of a need to add GPS tagged data to my images,
+Unfortunately the other libraries out there couldn't do updates and
+didn't seem easily architectured to be able to add such a thing. Ain't
+reusable software grand!
+
+## Apps
+
+- **dump_exif.py**: Output the EXIF file from a given file.
+- **setgps.py**: Set the GPS metadata on a file.
+- **getgps.py**: Get the GPS metadata from a file.
+- **noop.py**: This is a no-op on a jpeg file. Useful for testing images are preserved across 
+operations using pexif. Note that the binary data will not be exact as pexif will compress 
+unused space in the file, however running it on a file twice should end up with the same data.
+
+## Examples
+
+- **hello.py**: Add a simple description to a photo.
+
+## Status:
+
+**WARNING**: This could destroy your images!! Backup your images before using.
+
+Currently it parses files from my Canon without a problem, and is able to
+add a GPS tag without corrupting the rest of the image.
+
+## References
+
+This work couldn't be done with the reference for the spec. In particular I worked to:
+
+- http://www.exiv2.org/Exif2-2.PDF
+
+For the format of the Canon stuff I used:
+
+- http://www.burren.cx/david/canon.html
+
+For the format of FujiFILM make note:
+
+- http://www.ozhiker.com/electronics/pjmt/jpeg_info/fujifilm_mn.html
+
+## Acknowledgments:
+
+[Nick Carter]([email protected]) provided conker.jpg which is used for testing FUJIFILM exif data.
+
+[Nick Burch]([email protected]) provided noexif.jpg which is used
+for testing inputs that don't have an existing EXIF segment. Nick burch
+also found an error in GeoTags on the S60.
+
+[Christopher Jones]([email protected]) who inspired updating
+my examples to show how copying EXIF data from one jpeg to another.
+
+[Roland Klabunde]([email protected]) who also found a bug in
+ the GeoTag functionality.
+
+[Marcell Lengyel]([email protected]) for adding better support for
+ Canon g3 and FujiFilm z5fd.
+
+[Andrew Baumann](http://ab.id.au/) for finding a bug in dealing with
+ extended IFD sections, and supplying the timezone adjustment script.