[DOCS] Updated README.md and extension description

Author: derhansen

README.md

@@ -3,8 +3,8 @@
 [![Monthly Downloads](https://poser.pugx.org/derhansen/form_crshield/d/monthly)](https://packagist.org/packages/derhansen/form_crshield)
 [![Project Status: Active – The project has reached a stable, usable state and is being actively developed.](https://www.repostatus.org/badges/latest/active.svg)](https://www.repostatus.org/#active)
 
-Form challenge/response spam shield
-===================================
+Challenge/response spam shield for TYPO3 ext:form
+=================================================
 
 ## What is it?
 
@@ -14,7 +14,7 @@ in TYPO3 form extension.
 ## How does it work?
 
 Form challenge/response spam shield adds a hidden input field to every form generated by the TYPO3 form
-extension. The input field contains a data-attribute with a challenge. The included JavaScript will
+extension. The input field has a precalculated value with a challenge. The included JavaScript will
 use the challenge to calculate an expected response which will be checked on every form submission.
 If the expected response is not submitted, validation for the hidden input field is considered as
 failed and no email will be sent.

ext_emconf.php

@@ -1,8 +1,8 @@
 <?php
 
 $EM_CONF[$_EXTKEY] = [
-    'title' => 'Form challenge/response spambot shield',
-    'description' => 'Challenge/response spambot protection for ext:form',
+    'title' => 'Challenge/response spambot protection for ext:form',
+    'description' => 'Adds a hidden input field containing a challenge string to forms. Client must execute included JavaScript to calculate the expected response.',
     'category' => 'fe',
     'author' => 'Torben Hansen',
     'author_email' => 'derhansen@gmail.com',