Clarify when top up credits expire.

Author: robinjhuang

interface/credits.mdx

@@ -88,4 +88,8 @@ After completing the payment, please return to `Menu` -> `Credits` to check if y
   <Accordion title="Why don't I see WeChat or Alipay payment options?">
   Please ensure you are paying in USD, as WeChat and Alipay are only supported when paying in USD
   </Accordion>
+
+  <Accordion title="Do credits expire?">
+  Yes, credits expire 1 year from the date of purchase
+  </Accordion>
 </AccordionGroup>

zh-CN/interface/credits.mdx

@@ -86,6 +86,10 @@ ComfyUI将始终保持完全开源，并对本地用户免费。
   </Accordion>
 
   <Accordion title="为什么没有支付宝微信支付选项？">
-  请确保你选择了美元支付，目前微信支付宝等仅在美元支付时才支持
+  请确保你选择了美元支付,目前微信支付宝等仅在美元支付时才支持
+  </Accordion>
+
+  <Accordion title="积分会过期吗？">
+  会的，积分在购买之日起1年后过期
   </Accordion>
 </AccordionGroup>