Improved error reporting in output. Added "annotationRef" as ignored document...

Improved error reporting in output. Added "annotationRef" as ignored document element. Improved character replacement

spec2md.py

@@ -350,6 +350,7 @@ def processDocuments(documents:list[str],
 							 'commentReference',
 							 'smartTag',
 							 'footnoteRef',
+							 'annotationRef',
 			)
 			
 
@@ -822,7 +823,7 @@ def processDocuments(documents:list[str],
 						
 						lines.append('')	# Add an empty line before a table
 						if errorDetected:
-							lines.append('<mark>The table below caused an error during conversion and may need extra attention</mark>')
+							lines.append('<mark>The table below caused an error during conversion (e.g. incorrect number of columns) and may need extra attention</mark>')
 							lines.append('')	# Add an empty line before a table
 						lines.extend(tableLines)
 						lines.append('')	# Add another empty line after a table
@@ -846,6 +847,9 @@ def processDocuments(documents:list[str],
 							lines[i] = line
 						else:
 							_print(f'[yellow]({linenumber(i)}) Non-ASCII character (consider to add a replacement in the config.ini file): "{ch}" / {ord(ch)} / {hex(ord(ch))}')
+							line = line.replace(ch, f'<mark>Non-ASCII character {ch} / {hex(ord(ch))}</mark>')
+							lines[i] = line
+
 		
 
 			#