docs: update CLI installation instruction in README #39

	##
	# Copyright (C) 2023 Hedera Hashgraph, LLC
	#
	# Licensed under the Apache License, Version 2.0 (the "License");
	# you may not use this file except in compliance with the License.
	# You may obtain a copy of the License at
	#
	# http://www.apache.org/licenses/LICENSE-2.0
	#
	# Unless required by applicable law or agreed to in writing, software
	# distributed under the License is distributed on an "AS IS" BASIS,
	# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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	name: "PR Formatting"
	on:
	workflow_dispatch:
	pull_request:
	types:
	- opened
	- reopened
	- edited
	- synchronize

	defaults:
	run:
	shell: bash

	permissions:
	statuses: write

	concurrency:
	group: pr-formatting-${{ github.workflow }}-${{ github.head_ref \|\| github.run_id }}
	cancel-in-progress: true

	jobs:
	title-check:
	name: Title Check
	runs-on: [self-hosted, Linux, medium, ephemeral]
	steps:
	- name: Check PR Title
	uses: aslafy-z/conventional-pr-title-action@2ce59b07f86bd51b521dd088f0acfb0d7fdac55e # v3.1.1
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

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