Update README.md + Translations (#6)

* Update README.md

Now we don't have config.env anymore, we now use config.json inside props folder

* Add portuguese.json

* Set portuguese language if  user's telegram app is in portuguese

* oh fudge, I forgot this one

---------

Co-authored-by: GiovaniFZ <giovanifinazzi@gmail.com>

commands/checklang.js

@@ -0,0 +1,11 @@
+function getStrings(languageCode) {
+    if (languageCode === 'pt-br') {
+      return require('../locales/portuguese.json');
+    } else {
+      return require('../locales/english.json');
+    }
+}
+
+module.exports = {
+    getStrings
+  };