fix: don't allow symbol to be wrapped to new line (#10)

Co-authored-by: Tim Jonas Meinerzhagen <[email protected]>

mkdocs_link_marker_plugin/plugin.py

@@ -21,10 +21,10 @@ def __init__(self):
     def on_page_content(self, html, page, config, files):
         if self.config['enable_external_link']:
             p_external_link = re.compile('<a href="(http.*?)">(.*?)</a>')
-            html = p_external_link.sub('<a href="\\1">\\2 ' + self.config['icon_external_link'] + '</a>', html)
+            html = p_external_link.sub('<a href="\\1">\\2&nbsp;' + self.config['icon_external_link'] + '</a>', html)
 
         if self.config['enable_mail']:
             p_mail = re.compile('<a href="(mailto:.*?)">(.*?)</a>')
-            html = p_mail.sub('<a href="\\1">\\2 ' + self.config['icon_mail'] + '</a>', html)
+            html = p_mail.sub('<a href="\\1">\\2&nbsp;' + self.config['icon_mail'] + '</a>', html)
 
         return html