Update README.md

sources/README.md

-# Sources
-## File types
-*.doc, +.docx  = Microsoft Word 2010
-*.mmap = Corel/Mindjet Mindmanager 2019
-*.pptx = Microsoft Powerpoint 2010
-## Conversion
-* From MS-Word to PDF: Microsoft Print to PDF
-* From MS-Powerpoint to PDF: Microsoft Print to PDF
-* From Corel/Mindjet Mindmanager to HTML5 (interactive map): Export to HTML5 Interactive Map or Publish (and download subsequently).
+# Sources
+## File types
+* *.doc, +.docx  = Microsoft Word 2010
+* *.mmap = Corel/Mindjet Mindmanager 2019
+* *.pptx = Microsoft Powerpoint 2010
+## Conversion
+* From *.doc or *.docx to *.pdf: MS-Word / Microsoft Print to PDF 
+* From *.pptx to *.pdf: MS-Powerpoint: Microsoft Print to PDF
+* From *.mmap to *.html: Mindmanager / Export to HTML5 Interactive Map (and distribute the file) or Publish to Mindmanager cloud (and distribute the hyperlink)
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