Improve help

Author: Waren Gonzaga

lib/cli/index.js

@@ -83,22 +83,25 @@ exports.help = () => {
     COVID-19 Tracker CLI v${pkg.version} by Waren Gonzaga
     ${line}
 
-    /<country> ................ by country stats
-                                ex. /philippines
-    /<country code> ........... by country stats shortcut
-                                ex. /ph
+    /<country name> ................... by country stats
+                                        ex. /philippines /korea
+    /<ISO 3166-1 code> ................ by country stats shortcut
+                                        ex. /ph /kor
 
-    /cmd ...................... if using CMD
-    /cmd/<country> ............ by country stats on CMD
-    /cmd/<country code> ....... by country stats shortcut on CMD
+    /cmd .............................. if using CMD
+    /cmd/<country name> ............... by country stats on CMD
+    /cmd/<ISO 3166-1 code> ............ by country stats shortcut on CMD
 
-    /plain or /basic .......... if your cli does not support ANSI encoding
-                                similar to /cmd usage and layout
-                                ex. /plain/philippines or /plain/ph
-                                    /basic/philippines or /basic/ph
+    /plain or /basic .................. if your cli does not support ANSI encoding
+                                        similar to /cmd usage and layout
+                                        ex. /plain/philippines or /plain/ph
+                                        /basic/philippines or /basic/ph
 
     To learn more about the usage... please visit
-    warengonza.ga/covid19-tracker-cli
+    https://warengonza.ga/covid19-tracker-cli
+
+    ISO 3166-1 Code List:
+    https://warengonza.ga/iso-3166-1-codes
 
     ${line}
     ${repo}