fixed broken links, typos (#8783)

* fixed broken links, typos

* Update docs/ibc/overview.md

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* Update docs/intro/sdk-app-architecture.md

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* Update docs/building-modules/simulator.md

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docs/run-node/interact-node.md

@@ -50,7 +50,7 @@ You should see two delegations, the first one made from the `gentx`, and the sec
 
 ## Using gRPC
 
-The Protobuf ecosystem developed tools for different use cases, including code-generation from `*.proto` files into various languages. These tools allow to build clients easily. Often, the client connection (i.e. the transport) can be plugged and replaced very easily. Let's explore one of the most popular transport: [gRPC](../core/grpc_rest.md).
+The Protobuf ecosystem developed tools for different use cases, including code-generation from `*.proto` files into various languages. These tools allow the building of clients easily. Often, the client connection (i.e. the transport) can be plugged and replaced very easily. Let's explore one of the most popular transport: [gRPC](../core/grpc_rest.md).
 
 Since the code generation library largely depends on your own tech stack, we will only present three alternatives: