Add note on Hardhat (#1324)

* Add note on Hardhat

* remove space

* remove space

* update space

* Move note location

* reword

* add link

* Update wallet/how-to/manage-networks/add-network.md

Co-authored-by: Alexandra Tran Carrillo <12214231+alexandratran@users.noreply.github.com>

---------

Co-authored-by: Alexandra Tran Carrillo <12214231+alexandratran@users.noreply.github.com>

wallet/how-to/manage-networks/add-network.md

@@ -30,6 +30,12 @@ The confirmations look like the following:
     </div>
 </div>
 
+:::note
+
+To add a local development network such as [Hardhat](https://hardhat.org) to MetaMask, see [Run a development network](../how-to/run-devnet.md).
+
+:::
+
 ## Example
 
 The following is an example of using `wallet_addEthereumChain` and `wallet_switchEthereumChain` to
@@ -63,4 +69,4 @@ try {
   }
   // Handle other "switch" errors.
 }
-```
+```