Fix Docker for Mac link in docker.md

[danrasband]

PR Details

Description

This is a simple change. I noticed that the Markdown was a little goofed up in the docker.md file and decided to fix it. Basically the link to the Windows Docker download was included twice and in a way that broke the markdown a bit.

Related Issue

#405

Motivation and Context

It resolves some potential confusion in a readme.

How Has This Been Tested?

The link works.

Types of changes

• Defect fix (non-breaking change that fixes an issue)
• New feature (non-breaking change that adds functionality)
• Breaking change (fix or feature that cause existing functionality to change)

Checklist:

• I have added any new packages to the sonar-scanner.properties file
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
  ODE Contributing Guide - This link seems to be non-existent now
• I have added tests to cover my changes.
• All new and existing tests passed.