Add correct reference in code-update.md

Change-Id: I8b08bef4461b0d3e65a4a7a35eee7c77a4142d54
Signed-off-by: Sridevi Ramesh <sridevra@in.ibm.com>
diff --git a/docs/code_update.md b/docs/code_update.md
index 90c2ef5..bf7289f 100644
--- a/docs/code_update.md
+++ b/docs/code_update.md
@@ -4,7 +4,7 @@
 
 Currently supported BMC and PNOR update formats are UBI. For code update
 information, please refer to
-[code-update.md](https://github.com/openbmc/docs/blob/master/code-update/code-update.md)
+[code-update.md](https://github.com/openbmc/docs/blob/master/designs/code-update.md)
 
 - UBI Format
 
@@ -46,7 +46,7 @@
 
 Currently supported BMC and PNOR update formats are UBI and non-UBI. For code
 update information, please refer to
-[code-update.md](https://github.com/openbmc/docs/blob/master/code-update/code-update.md)
+[code-update.md](https://github.com/openbmc/docs/blob/master/designs/code-update.md)
 
 - UBI Format