Fix link

Author: dr0i

tests/manifest.html

@@ -84,7 +84,7 @@ <h3><a href="toRdf-manifest.html">toRdf</a> tests have <em>input</em> and <em>ex
 
 <p>Test results that include a context input presume that the context is provided locally, and not from the referenced location, thus the results will include the content of the context file, rather than a reference.</p>
 
-<p>Developers are encouraged to make a local copy of the test suite (available on <a href="http://github.com/w3c/json-ld-api/tests/">GitHub</a>) and simulate the behavior of fetching test files remotely and setting HTTP headers as described in a particular test entry.</p>
+<p>Developers are encouraged to make a local copy of the test suite (available on <a href="https://github.com/w3c/json-ld-api/tree/master/tests">GitHub</a>) and simulate the behavior of fetching test files remotely and setting HTTP headers as described in a particular test entry.</p>
 
 <h2 id="json-ld-object-comparison">JSON-LD Object comparison</h2>