Added comments & small guides

google/recaptcha/1.1/manifest.json

@@ -3,6 +3,8 @@
         "config/": "%CONFIG_DIR%/"
     },
     "env": {
+        "#1": "To use Google Recaptcha, you must register a site on Recaptcha's admin panel:",
+        "#2": "https://www.google.com/recaptcha/admin",
         "GOOGLE_RECAPTCHA_SITE_KEY": "",
         "GOOGLE_RECAPTCHA_SECRET": ""
     },

google/recaptcha/1.1/post-install.txt

@@ -0,0 +1,9 @@
+<bg=blue;fg=white>                        </>
+<bg=blue;fg=white> Recaptcha setup        </>
+<bg=blue;fg=white>                        </>
+
+  * Register a site on https://www.google.com/recaptcha/admin
+
+  * Modify your GOOGLE_RECAPTCHA_SITE_KEY and GOOGLE_RECAPTCHA_SECRET config in <fg=green>.env</>
+
+  * Inject the <fg=green>ReCaptcha\ReCaptcha</> service when you need to <fg=green>verify</> a submitted captcha