Update to contact-details.html (#315)

Changed hint text for clinician field to:
 "We ask this so we can set you up with the right permissions."

Author: Anna-Sutton

app/views/apply/check.html

@@ -93,7 +93,7 @@ <h1 class="nhsuk-heading-l">{{ pageName }}</h1>
           },
           {
             key: {
-              text: "Clinical"
+              text: "Registered clinician"
             },
             value: {
               text: ("Yes" if data.clinician == "yes" else "No")

app/views/apply/contact-details.html

@@ -70,7 +70,7 @@ <h1 class="nhsuk-heading-l">{{ pageName }}</h1>
             }
           },
           hint: {
-            text: "Only registered clinicians can be recorded as the vaccinator."
+            text: "We ask this so we can set you up with the right permissions."
           },
           value: data.clinician,
           items: [