Update README.md

Author: gssbzn

README.md

@@ -3,7 +3,7 @@
 
 `mcli` is a tool for managing your MongoDB cloud services
 
-![Screenshot 2020-01-03 at 10 49 27](https://user-images.githubusercontent.com/461027/71719742-2e0dc000-2e17-11ea-885c-385a80aea95a.png)
+![Screenshot 2020-01-03 at 10 49 27](https://user-images.githubusercontent.com/461027/73472371-d6656480-4382-11ea-8bfb-535d91cf1fb4.png)
 
 # Installing
 ## Binary
@@ -20,7 +20,7 @@ Ideally, you should install it somewhere in your PATH for easy use. `/usr/local/
 - [Git](https://git-scm.com/)
 - [Go (at least Go 1.13)](https://golang.org/dl/)
 
-## Fetch from GitHub 
+### Fetch from GitHub 
 The easiest way to get started is to clone `mcli` and install with go:
 
 ```bash
@@ -29,16 +29,16 @@ cd mcli
 make install
 ```
 
-# Usage
+## Usage
 
 Run `mcli help` for a list of available commands
 
-## Authentication
+### Authentication
 Run `mcli config` to set up a profile.
 
 You can also use `MCLI_OPS_MANAGER_URL`, `MCLI_PUBLIC_API_KEY`, and `MCLI_PRIVATE_API_KEY` to define some of the authentication variables
 
-## ZSH Completion (experimental)
+### ZSH Completion (experimental)
 Add the following to your `.zshrc` file
 
 ```bash