issue #7218 Doxygen parsing word documents

making list consistent again.
See also table in chapter "Getting Started"

Author: albert-github

doc/starting.doc

@@ -128,6 +128,7 @@ Extension | Language | Extension | Language     | Extension | Language
 .hpp      |C / C++   | | | | |
 .h++      |C / C++   | | | | |
 .mm       |C / C++   | | | | |
+.txt      |C / C++   | | | | |
 
 Any other extension is not parsed unless it is added to
 \ref cfg_file_patterns "FILE_PATTERNS" and the appropriate

src/config.xml

@@ -1404,7 +1404,9 @@ FILE_VERSION_FILTER = "cleartool desc -fmt \%Vn"
       <value name='*.markdown'/>
       <value name='*.md'/>
       <value name='*.mm'/>
-      <value name='*.dox'/>
+      <value name='*.dox' desc='(to be provided as doxygen C comment)'/>
+      <value name='*.doc' desc='(to be provided as doxygen C comment)'/>
+      <value name='*.txt' desc='(to be provided as doxygen C comment)'/>
       <value name='*.py'/>
       <value name='*.pyw'/>
       <value name='*.f90'/>