diff --git a/docs/membership/index.md b/docs/membership/index.md
index a33429ae..88fa4cfa 100644
--- a/docs/membership/index.md
+++ b/docs/membership/index.md
@@ -11,10 +11,10 @@ free5GC is a nonprofit organization dedicated to developing innovative and next-
 * Gold Sponsor – donation from US $68,000 to US $102,000
 * Platinum Sponsor – donation for more than US $102,000
 
-You can now support free5GC using your credit cards through the link：https://fund.nycu.edu.tw/plans/HYnZMprdAGx. Your generosity is appreciated.
+You can now support free5GC using your credit cards through the link：[https://fund.nycu.edu.tw/plans/HYnZMprdAGx](https://fund.nycu.edu.tw/plans/HYnZMprdAGx). Your generosity is appreciated.
 
 
 > [!TIPS] 
 > - You don’t need to donate to use free5GC. You can download free5GC from [https://github.com/free5gc/free5gc](https://github.com/free5gc/free5gc).
 > - The license of free5GC follows Apache 2.0. That is, anyone can use free5GC for commercial purposes for free. We will not charge any license fee.
-> - if you have any questions or problems regarding donation and sponsorship, please email us at free5GC.org@gmail.com.
+> - If you have any questions or problems regarding donation and sponsorship, please email us at free5GC.org@gmail.com.