Update Tagging Merchants in Korea (English)

Tagging-Merchants-in-Korea-%28English%29.md

@@ -37,6 +37,8 @@ Zoom in/out to see if the place is already mapped.
 
 **Already there?** 
 
+Verify all the present tags (if possible) when you are adding Bitcoin tags to an existing location.
+
     Add the following tags:
 
 `check_date:currency:XBT=`
@@ -116,3 +118,17 @@ Copy the node URL, you'll need it in the final step.
     Past the URL (from step 5) into the Gitea ticket comment section → click “Close with comment”.
     
 That's it, time for the next one!
+
+# Other tags explained
+
+`check_date=`
+This indicates the date when all present tags were verified using local knowledge or by cross-checking the company's website. Use the ISO date format YYYY-MM-DD.
+
+`check_date:currency:XBT=`
+Update this tag with the most recent verified Bitcoin payment made. Use the ISO date format YYYY-MM-DD.
+
+`survey:date=`
+Use this tag when the location has been physically verified in person by you. Use the ISO date format YYYY-MM-DD.
+
+`description=`
+This tag can be used to provide additional information about the related element (visible to the end user). Keep it short, a few words or maybe one to three sentences at most. Only neutral and factual information is allowed. Do not include subjective evaluations, for example "the best restaurant in town". Do not use the tag for advertising messages.