fix typos

Author: omahs

flips/network-api.md

@@ -78,9 +78,9 @@ When the message is dequeued, the engine should check the `Context` to see wheth
 
 These can be combined into a [single context](https://github.com/teivah/onecontext) which can be used by the message processing business logic, so that the processing can be cancelled either by the network or by the engine. This will allow us to deprecate [`engine.Unit`](https://github.com/onflow/flow-go/blob/master/engine/unit.go), which uses a single `Context` for the entire engine.
 
-There are certain types of messages (e.g block proposals) which may transit between the private and public networks via relay nodes (e.g Access Nodes). Libp2p's [default message ID function](https://github.com/libp2p/go-libp2p-pubsub/blob/0c7092d1f50091ae88407ba93103ac5868da3d0a/pubsub.go#L1040-L1043) will treat a message originating from one network, relayed to the other network by `n` distinct relay nodes, as `n` distinct messages, causing unnacceptable message duplification / traffic amplification. In order to prevent this, we will need to define a [custom message ID function](https://pkg.go.dev/github.com/libp2p/go-libp2p-pubsub#WithMessageIdFn) which returns the hash of the message [`Payload`](https://github.com/onflow/flow-go/blob/698c77460bc33d1a8ee8a154f7fe4877bc518a02/network/message/message.proto#L13). 
+There are certain types of messages (e.g block proposals) which may transit between the private and public networks via relay nodes (e.g Access Nodes). Libp2p's [default message ID function](https://github.com/libp2p/go-libp2p-pubsub/blob/0c7092d1f50091ae88407ba93103ac5868da3d0a/pubsub.go#L1040-L1043) will treat a message originating from one network, relayed to the other network by `n` distinct relay nodes, as `n` distinct messages, causing unacceptable message duplification / traffic amplification. In order to prevent this, we will need to define a [custom message ID function](https://pkg.go.dev/github.com/libp2p/go-libp2p-pubsub#WithMessageIdFn) which returns the hash of the message [`Payload`](https://github.com/onflow/flow-go/blob/698c77460bc33d1a8ee8a154f7fe4877bc518a02/network/message/message.proto#L13). 
 
-In order to avoid making the message ID function deserialize the `Message` to access the `Payload`, we need to remove all other fields from the `Message` protobuf so that the message ID function can simply take the hash of the the pubsub [`Data`](https://github.com/libp2p/go-libp2p-pubsub/blob/0c7092d1f50091ae88407ba93103ac5868da3d0a/pb/rpc.pb.go#L145) field without needing to do any deserialization.
+In order to avoid making the message ID function deserialize the `Message` to access the `Payload`, we need to remove all other fields from the `Message` protobuf so that the message ID function can simply take the hash of the pubsub [`Data`](https://github.com/libp2p/go-libp2p-pubsub/blob/0c7092d1f50091ae88407ba93103ac5868da3d0a/pb/rpc.pb.go#L145) field without needing to do any deserialization.
 
 The `Multicast` implementation will need to be changed to make direct connections to the target peers instead of sending messages with a `TargetIDs` field via gossip.
 
@@ -90,4 +90,4 @@ The `Multicast` implementation will need to be changed to make direct connection
 - Since existing calls to `Multicast` only target 3 peers, changing the implementation to use direct connections instead of gossip will reduce traffic on the network and make it more efficient.
 - While `engine.Unit` provides some useful functionalities, it also uses the anti-pattern of [storing a `Context` inside a struct](https://github.com/onflow/flow-go/blob/b50f0ffe054103a82e4aa9e0c9e4610c2cbf2cc9/engine/unit.go#L117), something which is [specifically advised against](https://pkg.go.dev/context#:~:text=Do%20not%20store%20Contexts%20inside%20a%20struct%20type%3B%20instead%2C%20pass%20a%20Context%20explicitly%20to%20each%20function%20that%20needs%20it.%20The%20Context%20should%20be%20the%20first%20parameter%2C%20typically%20named%20ctx%3A) by [the developers of Go](https://go.dev/blog/context-and-structs#TOC_2.). Here is an [example](https://go.dev/blog/context-and-structs#:~:text=Storing%20context%20in%20structs%20leads%20to%20confusion) illustrating some of the problems with this approach.
 
-## Implementation (TODO)
+## Implementation (TODO)