Update index.mdx
fix relative link
@@ -1014,7 +1014,7 @@ The example above uses an ECDSA key pair on the P-256 (secp256r1) elliptic curve
This is an example of how to construct a FLOW token transfer transaction
with the Flow Go SDK.
-Before using this example, read the [Build a Transaction guide](../building-transactions)
+Before using this example, read the [Build a Transaction guide](#build-transactions)
for a general overview of how Flow transactions are constructed.
## Cadence Script
