Merge pull request #102 from gagan7gb/patch-20

Update transaction-fees.md

docs/edgeware-stack/economics/transaction-fees.md

@@ -4,7 +4,7 @@
 
 Several resources in a blockchain network are limited, for example, storage and computation. Transaction fees prevent individual users from consuming too many resources. Edgeware uses a weight-based fee model as opposed to a gas-metering model. As such, fees are charged prior to transaction execution; once the fee is paid, nodes will execute the transaction.
 
-[Web3 Foundation Research](https://research.web3.foundation/en/latest/polkadot/Token%20Economics.html) designed the Polkadot fee system with the following objectives:
+[Web3 Foundation Research](https://research.web3.foundation/en/latest/polkadot/overview/2-token-economics.html) designed the Polkadot fee system with the following objectives:
 
 * Each Relay Chain block should be processed efficiently to avoid delays in block production.
 * The growth rate of the Relay Chain should be bounded.