Azure Functions Core Tools -Installation

1. install using [MSI](https://go.microsoft.com/fwlink/?linkid=2174087)
2. install using  npm 
    
```sh
 	npm i -g azure-functions-core-tools@4 --unsafe-perm true
```
3. install using chocolatey 
   	
```sh
 	choco install azure-functions-core-tools
```
4. install using winget 

```sh
   winget install Microsoft.AzureFunctionsCoreTools
```
5.  Set up package feed in Linux machine 
    	
``` sh
 # Setup package feed
 	wget -q https://packages.microsoft.com/config/ubuntu/19.04/packages-microsoft-prod.deb
    sudo dpkg -i packages-microsoft-prod.deb
 # install 
    sudo apt-get update
     sudo apt-get install azure-functions-core-tools-4
```