docs(develop): fix typos (#1156)

fix typos

task: none

docs/site/docs/develop/testnet/testnet.md

@@ -32,7 +32,7 @@ Before you deploy your project to any network, you will need native tokens for t
 
 #### `portalAddress`
 
-The value for `portalAddress` should be updated to the address of the deployed Omni portals. This can be found in the relavant addresses page for the Omni Omega testnet which will be shared soon.
+The value for `portalAddress` should be updated to the address of the deployed Omni portals. This can be found in the relevant addresses page for the Omni Omega testnet which will be shared soon.
 
 ### Deployment
 

docs/site/docs/develop/xapp/example.md

@@ -92,7 +92,7 @@ function isXCall() internal view returns (bool) {
 }
 ```
 
-Note that not only does `isXCall` check with the portal that the current transaction is an `xcall`, it also confirms the sender is the portal itself. This helps avoid mistaking calls later in an `xcall` stacktrace with the original `xcall`. Using this helper, we can ensure that `greet()` can only every be called via an `xcall`.
+Note that not only does `isXCall` check with the portal that the current transaction is an `xcall`, it also confirms the sender is the portal itself. This helps avoid mistaking calls later in an `xcall` stacktrace with the original `xcall`. Using this helper, we can ensure that `greet()` can only ever be called via an `xcall`.
 
 ```solidity
 function greet(string calldata greeting) external xrecv  {

docs/site/docs/develop/xapp/fees.md

@@ -6,7 +6,7 @@ import GitHubCodeBlock from '@site/src/components/GitHubCodeBlock/GitHubCodeBloc
 
 # Fees
 
-Omni charges fees for each `xcall`. These fees are paid synchronously on the soruce chain, in the chain's native token. For most rollups, this is ETH.
+Omni charges fees for each `xcall`. These fees are paid synchronously on the source chain, in the chain's native token. For most rollups, this is ETH.
 
 ## Fee Calculation