diff --git a/subfiles/about.isat.md b/subfiles/about.isat.md
index 3b4c1b6..8003523 100644
--- a/subfiles/about.isat.md
+++ b/subfiles/about.isat.md
@@ -10,27 +10,31 @@
 You′ve found something on the internet.
 Are these links blocking Tor users or not?
  
-This add-on is using* Crimeflare′s Public API to scan FQDN.
+This add-on is using[1] Crimeflare′s Public[3] API to scan FQDN.
 	e.g. https://ekzemplo.com/page.html → "ekzemplo.com"
 
 This add-on never send other information.
 
 
 
-* How to use offline database
+[1] How to use offline database
 	1. Open add-on's option page and select "Use Offline Local Database".
 	2. Click "Database" link.
-	3. Create a new text file** (or download text file from cloudflare-tor)
+	3. Create a new text file[2] (or download text file from cloudflare-tor)
 	4. Click "Import Database" and select your text file.
 	5. Wait until the message appear.
 
-** Text file example
-(FQDN/Domain)
---------------------
-www.cloudflare.com
-domain.com
-example.org
---------------------
+[2] Text file example
+	(FQDN/Domain)
+	--------------------
+	www.cloudflare.com
+	domain.com
+	example.org
+	--------------------
+
+[3] Public API services
+	You can select which API service you want to use.
+
 ```