Update .lycheeignore (#3122)

Adding links that are used in some tutorials as examples but do not go anywhere

Author: sekyondaMeta

.lycheeignore

@@ -1,2 +1,8 @@
 # Used for links to be ignored during the link check.
 # Add link to file along with comment as to why it should be ignored
+
+#Example link in some of the tutorials that should be ignored
+file:///f:/libtmp/some_file
+
+#Ignore links with "file:///" to catch any other example links
+file:\/\/\/.*