Add explicit ReCaptcha2

content/contacta.ca.md

@@ -16,5 +16,6 @@ Si necessiteu ajuda, teniu suggeriments o trobeu errors mentre feu servir amb el
   <input type="email" name="email" required>
   <label>Missatge</label>
   <textarea name="message" required></textarea>
+  <div data-netlify-recaptcha></div>
   <button type="submit">Envia</button>
 </form>

content/contacta.en.md

@@ -17,5 +17,6 @@ If you need help, have a suggestion or have found errors while using our openBVE
   <input type="email" name="email" required>
   <label>Message</label>
   <textarea name="message" required></textarea>
+  <div data-netlify-recaptcha></div>
   <button type="submit">Send</button>
 </form>

content/contacta.es.md

@@ -17,5 +17,6 @@ Si necessitas ayuda, tienes sugerencias o has encontrado algún error usando nue
   <input type="email" name="email" required>
   <label>Mensaje</label>
   <textarea name="message" required></textarea>
+  <div data-netlify-recaptcha></div>
   <button type="submit">Enviar</button>
 </form>