There are occasions where we might want to download only a folder from someone's Github repository instead of the entire repository (at least for me, yes). After doing some Googling, I finally managed to find the way to do it. This is for Windows.
Outlining the steps involved as follows (using the 'notebooks' folder from my repository as an example):
1) Go to http://subversion.apache.org/packages.html and install TortoiseSVN. Choose your respective OS. Will be good to tick all boxes when installing.
2) For the Github folder url, replace tree/master with trunk. So for example, https://github.com/hxchua/datadoubleconfirm/tree/master/notebooks will become https://github.com/hxchua/datadoubleconfirm/trunk/notebooks.
3) Go to the local folder (on your laptop) where you would like to download the Github folder to. Right-click and select SVN Checkout....
4) Indicate the modified url in Step 2 under URL of repository:.
5) Click OK.
Tadah! The folder will be downloaded.
Alternatively, you can make use of the command line, if you're familiar with command line, and write svn checkout https://github.com/hxchua/datadoubleconfirm/trunk/notebooks after you have TortoiseSVN installed.