docs: fix grammar and remove patch number from Go version (#596)

* docs: fix grammar

Fix a minor grammar issue

* docs: remove patch number from Go version

Go 1.21.4 has been released and we should encourage users to use the latest Go patch release in that minor version. Since this repo doesn't depend on Go 1.21.1, proposal to just state Go 1.21

README.md

@@ -8,7 +8,7 @@ For a high-level overview of how Blobstream works, check [here](https://github.c
 
 ## Install
 
-1. [Install Go](https://go.dev/doc/install) 1.21.1
+1. [Install Go](https://go.dev/doc/install) 1.21 
 2. Clone this repo
 3. Install the Blobstream CLI
 
@@ -29,7 +29,7 @@ If you are a Celestia-app validator, all you need to do is run the orchestrator.
 
 If you want to post commitments on an EVM chain, you will need to deploy a new Blobstream contract and run a relayer. Check [here](https://github.com/celestiaorg/orchestrator-relayer/blob/main/docs/relayer.md) for relayer docs and [here](https://github.com/celestiaorg/orchestrator-relayer/blob/main/docs/deploy.md) for how to deploy a new Blobstream contract.
 
-Note: the Blobstream P2P network is a separate network than the consensus or the data availability one. Thus, you will need its specific bootstrappers to be able to connect to it.
+Note: the Blobstream P2P network is a separate network from the consensus or the data availability one. Thus, you will need its specific bootstrappers to be able to connect to it.
 
 ## Contributing