Fix link to templating expressions in direct-api.md

Updated the link to the templating expressions documentation for accuracy.

Signed-off-by: Sakshee-s <sumansakshee36@gmail.com>

Author: e-esakman

content/documentation/guides/usage/direct-api.md

@@ -163,7 +163,7 @@ Direct API is also able to manage Event Driven API that are described using Asyn
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-Then adding a reference JSON payload - such a payload can also include some [templating expressions](./advanced/templates) to get some more dynamic data. Here we define producing random stock symbols and range price values:
+Then adding a reference JSON payload - such a payload can also include some [templating expressions](/documentation/references/templates/) to get some more dynamic data. Here we define producing random stock symbols and range price values:
 
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