Updates empty exporters

manuskript/exporter/manuskript.py

@@ -24,7 +24,10 @@ class manuskriptExporter(basicExporter):
     name = "Manuskript"
     description = "Default exporter, provides basic formats used by other exporters."
     exportTo = [
-        markdownFormat
+        basicFormat("Plain text", "Simplest export to plain text. Allows you to use your own markup not understood "
+                                  "by manuskript, for example <a href='www.fountain.io'>Fountain</a>."),
+        markdownFormat,
+        basicFormat("OPML")
     ]
 
     @classmethod

manuskript/exporter/mmd.py

@@ -13,7 +13,7 @@ class mmdExporter(basicExporter):
     exportTo = [
         basicFormat("HTML", "A little known format modestly used. You know, web sites for example."),
         basicFormat("latex", ""),
-        basicFormat("OpenDocument", "OpenDocument format. Used by LibreOffice for example."),
+        basicFormat("Flat XML", ""),
         basicFormat("ePub", "Books that don't kill trees."),
     ]
     cmd = "mmd"

manuskript/exporter/pandoc.py

@@ -24,7 +24,7 @@ class pandocExporter(basicExporter):
     exportTo = [
         HTMLFormat,
         basicFormat("ePub", "Books that don't kill trees."),
-        basicFormat("OpenDocument", ""),
+        basicFormat("OpenDocument", "OpenDocument format. Used by LibreOffice for example."),
         basicFormat("PDF", "Needs latex to be installed."),
         basicFormat("DocX", "Microsoft Office (.docx) document."),
     ]