Instructions
PayPal Donation Link
https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=VLFXYHTDDE4XL
PayPal Donation Button
<form action="https://www.paypal.com/cgi-bin/webscr" method="post" target="_top"> <input type="hidden" name="cmd" value="_s-xclick"> <input type="hidden" name="hosted_button_id" value="VLFXYHTDDE4XL"> <input type="image" src="https://www.paypal.com/en_US/i/btn/btn_donateCC_LG.gif" border="0" name="submit" alt="PayPal - The safer, easier way to pay online!"> <img alt="" border="0" src="https://www.paypalobjects.com/en_US/i/scr/pixel.gif" width="1" height="1"> </form>
Adding Facebook Like Button
To add FB like button you will have to insert the code, using the </code> block.
More details how to do this is here:
http://help.squarespace.com/guides/adding-a-facebook-like-button (Start From Step 3)
Here is the code to paste:
<div class="fb-like" data-href="http://apff.squarespace.com" data-width="200px" data-layout="button" data-action="like" data-show-faces="true" data-share="true"></div>