Github: Keeping a forked project up to date

I forked a project from here: https://github.com/chbatey/scassandra-java-client to a copy attached to my own account here: https://github.com/apojha/scassandra-java-client.

However, if user chbatey makes any changes to his version of the codebase, I want to keep up to date with his changes by continually merging them into my repo.

To merge changes on his repo to my copy, I added his repository as a remote repo.

Step 1: 

Navigate to where I have checked out my fork of his project.


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Before, the only branch is my own origin/master and the only remote project is my own:
bash-3.2$ git branch -r
  origin/HEAD -> origin/master
  origin/master

bash-3.2$ git remote -v
origin git@github.com:apojha/scassandra-java-client.git (fetch)
origin git@github.com:apojha/scassandra-java-client.git (push)
----------------------------

Step 2: 

Execute the following command to add a new remote repo called 'upstream' (this name can be anything): 

git remote add upstream git@github.com:chbatey/scassandra-java-client.git

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After, his branch has been added (upstream/master) and there is a new remote repo called upstream:

bash-3.2$ git branch -r
  origin/HEAD -> origin/master
  origin/master
  upstream/master 

bash-3.2$ git remote -v
origin git@github.com:apojha/scassandra-java-client.git (fetch)
origin git@github.com:apojha/scassandra-java-client.git (push)
upstream git@github.com:chbatey/scassandra-java-client.git (fetch)
upstream git@github.com:chbatey/scassandra-java-client.git (push)
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Now, if I want to pull his changes I execute the following:

git pull upstream master

which pulls any commits on 'upstream' into my master.