MM-1898 Updates to Mac OSX instructions

README.md

@@ -31,12 +31,12 @@ Local Machine Setup (Docker)
 
 ### Mac OSX ###
 
-1. Follow the instructions at: http://docs.docker.com/installation/mac/  
-    1. Use the Boot2Docker command-line utility.
-    2. If you do command-line setup use: `boot2docker init eval “$(boot2docker shellinit)”`  
+1. Install Boot2Docker using instructions at: http://docs.docker.com/installation/mac/  
+    1. Start Boot2Docker from the command line and run: `boot2docker init eval “$(boot2docker shellinit)”`  
 2. Get your Docker IP address with: `boot2docker ip`
-3. Add a line to your /etc/hosts that goes: `<Docker IP> dockerhost`
-4. Run: `boot2docker shellinit` and copy the export statements to your ~/.bash\_profile.
+3. Use `sudo nano /etc/hosts` to add `<Docker IP> dockerhost` to your /etc/hosts file 
+4. Run: `boot2docker shellinit` and copy the export statements to your ~/.bash\_profile by running `sudo nano ~/.bash_profile`. If you don't yet have a ~/.bash\_profile file this will create one for you. 
+    1. Then run: `source ~/.bash_profile`
 5. Run: `docker run --name mattermost-dev -d --publish 8065:80 mattermost/platform`
 6. When docker is done fetching the image, open http://dockerhost:8065/ in your browser.