Update README.md

Author: jkerak

README.md

@@ -7,6 +7,6 @@ There have been [two](https://medium.com/codebuddies/codebuddies-community-surve
 
 Some key principles:
 - CodeBuddies has the potential to be around for a long time. Make design and technology decisions with long term durability and data analysis in mind.
-- Use web standards and technologies that make the site accessible to people with disabilities.
+- Use web standards and technologies that make the site [accessible](https://webaccess.berkeley.edu/resources/tips/web-accessibility) to people with disabilities. 
 - Don't store response data that could be tied to a particular individual at any time. Try to prevent duplicate responses, but don't sacrifice privacy or security.
 - Ask questions of the community that either help CodeBuddies itself improve, or would give its members insight into technology trends that may be beneficial to their goals.