moved dpv-gdpr rdf files to root, updated docs

The dpv-gdpr RDF files are now in root to match the namespace with the
html serialisation i.e. dpv-gdpr {html,rdf,jsonld,tll} will all be found
in the same folder for content negotiation.

dpv-gdpr.html

@@ -161,7 +161,7 @@
     <p>The Data Privacy Vocabulary provides terms (classes and properties) to annotate and categorize instances of legally compliant personal data handling according to the EU General Data Protection Regulation. One category of terms are the legal bases. This vocabulary provides the legal bases defined by the GDPR.</p>
     <p style="text-align: center;">The namespace for terms for Legal Bases under GDPR is <code>http://www.w3.org/ns/dpv-gdpr#</code></p>
     <p style="text-align: center;">The suggested prefix for the GDPR Legal Bases namespace is <code>dpv-gdpr</code></p>
-    <p style="text-align: center;">An ontology of Legal Bases under GDPR is available <a href="rdf/LegalBasis.ttl">here</a>.</p>
+    <p style="text-align: center;">An ontology of Legal Bases under GDPR is available <a href="dpv-gdpr.ttl">here</a>.</p>
     <p style="text-align: center;">The Github repository for DPV is <a href="https://github.com/dpvcg/dpv-gdpr">here</a>.</p>
   </section>
   <section id="sotd">
@@ -333,7 +333,7 @@ <h2>Namespaces</h2>
   </section>
   <section id="vocab-legal-basis">
     <h2>Legal Basis under GDPR</h2>
-    <p>Regulations such as the GDPR specify certain legal basis for carrying out the processing of personal data, which makes it mandatory for every processing to have one (or more) legal basis that justifies their compliance. DPVCG provides a list of legal bases as per the GDPR under the separate namespace of dpv-gdpr. Additional legal bases can be declared by subclassing dpv:LegalBasis.</p>
+    <p>Regulations such as the GDPR specify certain legal basis for carrying out the processing of personal data, which makes it mandatory for every processing to have one (or more) legal basis that justifies their compliance. DPVCG provides a list of legal bases as per the GDPR under the separate namespace of dpv-gdpr. Additional legal bases can be declared by subclassing <code>dpv:LegalBasis</code>.</p>
     <p>The taxonomy lists a total of 17 legal bases as provided by Article 6 and Article 9 of the GDPR. The legal basis of ‘consent’ as defined in Article 6(1)(a) has been declared using the terms ‘explicit’ and ‘non-explicit’ to differentiate the requirements of the two in accordance of their requirements of compliance. Furthermore, legal basis provided by Article 6 apply to processing involving personal data whereas those in Article 9 apply specifically to processing involving special categories of personal data.</p>
 
     <section id="dpv-gdpr-classes">