Make terms.html clearer - fix typo. (#2372)

ynr/apps/api/templates/api/terms.html

@@ -3,6 +3,7 @@
 {% block api_content %}
 <h1>Data reuse terms</h1>
 {% filter markdown %}
+The data is made available under the Creative Commons Attribution 4.0 (CC BY 4.0) license.
 This means you are free to reuse the data for any reason, as long as you give attribution to "Democracy Club".
 [Please read the full terms for more information](https://creativecommons.org/licenses/by/4.0/).
 
@@ -13,7 +14,7 @@ <h1>Data reuse terms</h1>
   or from sources where it seems reasonable that we might use them on this site,
   such as the party's official page for that candidate, or their social media profile picture.
 
-If the CC-BY-A licence is problematic for you, but you feel that you have a worthwhile use of
+If the CC BY licence is problematic for you, but you feel that you have a worthwhile use of
 the data in mind, please contact us to discuss your situation further.
 
 #### Giving attribution