doc: fix typos and clarify wording

validate_workflow.sh

@@ -31,9 +31,9 @@
 #hh      -r, --result-folder <DIR>
 #hh                 target folder to store validation results
 #hh      -f, --files-mode [sort|delete|nothing]
-#hh                 mode=sort it sorts files to valid- and invalid-folder,
-#hh                 mode=delete it deletes already checked files from watch-folder
-#hh                 mode=nothing files in watch-folder are untouched
+#hh                 mode=sort sorts files to valid- and invalid-folder,
+#hh                 mode=delete deletes already checked files from watch-folder
+#hh                 mode=nothing files in watch-folder remain untouched
 #hh                 The mode=delete is default.
 #hh      -v, --valid-folder <DIR> 
 #hh                 only needed if files-mode=sort, moves valid files from
@@ -43,11 +43,11 @@
 #hh                 watch-folder to invalid folder
 #hh      -s, --statistics
 #hh                 print a statistic
-#hh      -m, -mode [auto, mediathek, fotothek, save, kitodo, lfulg]
-#hh                the mode auto tries to check files based on file endings.
-#hh                The other modes are concrete workflow names.
+#hh      -m, --mode [auto, mediathek, fotothek, save, kitodo, lfulg]
+#hh                the mode 'auto' tries to check files based on file extensions.
+#hh                The other modes are actual workflow names.
 #hh      -d, --daemon
-#hh                starts a daemon, works only in delete mode
+#hh                starts a daemon, works only in --files-mode=delete
 #hh      -t, --stage [current,upcoming,any]
 #hh                valides with current or upcoming profile/validator 
 #hh                or any if any is valid