Create README.md

Added a readme - to give some idea of what's going on here.

README.md

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+# QStripper
+
+*QStripper* will convert Sinclair QL word processing (Quill etc) documents to pdf, html, text, DocBook XML, Libre Office ODF, 
+ReStructuredText and ASCIIDoctor formats. The source document can have been created on either the Sinclair QL using the *Psion Suite* (specifically Quill), 
+or *Xchange*, or, created on a PC using the *Psion 4* suite of programs from the 1980's.
+
+Nostalgia - it's not what it used to be you know.
+
+## Features
+
+* Convert from QL or PC Quill documents to text, html (one page), pdf, Docbook XML, Open Document Format, etc.
+* Print Quill documents on your PC.
+* Edit before converting and/or printing. 
+* Add *italics*, for example, to QL documents.
+* Simple to install and use.
+* Cross platform - Windows & Linux. 32 and 64 bit versions available. Mac users can build from source. 
+* Now available for the Raspberry Pi.
+