Installed export example files

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The following files are installed in the export folder:
Table 1.
File Use
export.mms Map file that uses the .mts file as input to create the xref.txt file.
element.mtt Type tree that contains the item with the restriction list.
xreftbl.mtt Type tree that defines the cross-reference table to be produced.
readme.txt Readme file that briefly describes the Export example.
ttmaker60.mtt Type tree that contains the types that define the structure and syntax of the Type Tree Maker document file.