Updated links to ghost.org sites

no issue

Follow-up task of the updated Ghost Docs structure. Updated links reflecting the new structure to prevent unnecessary 404s and redirects

README.md

@@ -12,7 +12,7 @@ The default theme for [Ghost](http://github.com/tryghost/ghost/). This is the la
 
 Ghost uses a simple templating language called [Handlebars](http://handlebarsjs.com/) for its themes.
 
-This theme has lots of code comments to help explain what's going on just by reading the code. Once you feel comfortable with how everything works, we also have full [theme API documentation](https://ghost.org/docs/api/handlebars-themes/) which explains every possible Handlebars helper and template.
+This theme has lots of code comments to help explain what's going on just by reading the code. Once you feel comfortable with how everything works, we also have full [theme API documentation](https://ghost.org/docs/themes/) which explains every possible Handlebars helper and template.
 
 **The main files are:**
 

SECURITY.md

@@ -4,6 +4,6 @@ Potential security vulnerabilities can be reported directly us at `security@ghos
 
 The full, up-to-date details of our security policy and procedure can always be found in our documentation:
 
-https://ghost.org/docs/concepts/security/
+https://ghost.org/docs/security/
 
-Please refer to this before emailing us. Thanks for helping make Ghost safe for everyone 🙏.
+Please refer to this before emailing us. Thanks for helping make Ghost safe for everyone 🙏.

default.hbs

@@ -33,7 +33,7 @@
                     <a href="{{@site.url}}">Latest Posts</a>
                     {{#if @site.facebook}}<a href="{{facebook_url @site.facebook}}" target="_blank" rel="noopener">Facebook</a>{{/if}}
                     {{#if @site.twitter}}<a href="{{twitter_url @site.twitter}}" target="_blank" rel="noopener">Twitter</a>{{/if}}
-                    <a href="https://ghost.org" target="_blank" rel="noopener">Ghost</a>
+                    <a href="https://ghost.org/" target="_blank" rel="noopener">Ghost</a>
                 </nav>
             </div>
         </footer>

package.json

@@ -25,7 +25,7 @@
     "author": {
         "name": "Ghost Foundation",
         "email": "hello@ghost.org",
-        "url": "https://ghost.org"
+        "url": "https://ghost.org/"
     },
     "gpm": {
         "type": "theme",