Hi - I just checked back in and saw that you have commented - you can read more about pinging other users here. I reverted your earlier edit because it was unsourced - you can use the 'cite' tool, just above he editing window, to add a source when you add an assertion to an article. Please do drop me a note if you need any guidance on this. Cheers GirthSummit (blether) 23:53, 29 June 2019 (UTC)