update buy my cola

Author: tw93

src/supportCallout.ts

@@ -5,7 +5,7 @@ export const SUPPORT_CALLOUT = {
 };
 
 export const renderSupportCalloutForRSS = (lang: "zh" | "en" = "zh") => {
-  const cta = SUPPORT_CALLOUT[lang];
+  const cta = SUPPORT_CALLOUT[lang] ?? SUPPORT_CALLOUT.zh;
   const { link } = SUPPORT_CALLOUT;
   return `
     <hr style="border:none;border-top:0.5px solid rgba(0,0,0,0.08);margin:26px 0 14px;" />