Document security measures (#6812)

* add security commitment

* fix badge path

* set token permissions
see https://github.com/inventree/InvenTree/security/code-scanning/48

* add more chapters

* break up flow text

* spellchecking

* Revert "set token permissions"

This reverts commit 6deb33000f.

* Add pattern for social media providers restrictive APIs

docs/mlc_config.json

@@ -8,6 +8,12 @@
         },
         {
             "pattern": "http://127.0.0.1"
+        },
+        {
+            "pattern": "https://twitter.com/inventreedb"
+        },
+        {
+            "pattern": "https://www.reddit.com/r/InvenTree/"
         }
     ]
 }