Improve documentation

Doxyfile

@@ -51,7 +51,7 @@ PROJECT_BRIEF          = "Word-Addin für die Zentrale Arztbriefablage"
 # pixels and the maximum width should not exceed 200 pixels. Doxygen will copy
 # the logo to the output directory.
 
-PROJECT_LOGO           =
+PROJECT_LOGO           = zaaReloaded2/Icons/icon.png
 
 # The OUTPUT_DIRECTORY tag is used to specify the (relative or absolute) path
 # into which the generated documentation will be written. If a relative path is
@@ -778,7 +778,7 @@ INPUT_ENCODING         = UTF-8
 # *.md, *.mm, *.dox, *.py, *.f90, *.f, *.for, *.tcl, *.vhd, *.vhdl, *.ucf,
 # *.qsf, *.as and *.js.
 
-FILE_PATTERNS          =
+FILE_PATTERNS          = *.cs *.xaml *.txt *.md
 
 # The RECURSIVE tag can be used to specify whether or not subdirectories should
 # be searched for input files as well.