diff --git a/qlmarkdown_cli/main.swift b/qlmarkdown_cli/main.swift
index 547bab9..ae0abc7 100644
--- a/qlmarkdown_cli/main.swift
+++ b/qlmarkdown_cli/main.swift
@@ -134,6 +134,12 @@ while i < Int(CommandLine.argc) {
             case "--syntax-highlight":
                 settings.syntaxHighlightExtension = parseArgOnOff(index: i)
                 i += 1
+            case "--sub":
+                settings.subExtension = parseArgOnOff(index: i)
+                i += 1
+            case "--sup":
+                settings.supExtension = parseArgOnOff(index: i)
+                i += 1
             case "--hard-break":
                 settings.hardBreakOption = parseArgOnOff(index: i)
                 i += 1
@@ -330,6 +336,16 @@ for url in files {
         
         let html = settings.getCompleteHTML(title: url.lastPathComponent, body: text, basedir: markdown_url.deletingLastPathComponent(), forAppearance: appearance)
         
+        settings.renderStats += 1
+        if settings.renderStats > 0 && settings.renderStats % 100 == 0 {
+            print("""
+*** *** *** *** *** ***
+Thanks to this application you have viewed over \(settings.renderStats) files.
+If you find it useful and you have the possibility, consider buying me a coffee! (https://buymeacoffee.com/sbarex)
+*** *** *** *** *** ***
+""")
+        }
+        
         var output: URL?
         if let dest = dest {
             var isDir: ObjCBool = false