[codorial] WIP Add more config items

codorials/authentication-with-firebase/config.json

@@ -1,5 +1,7 @@
 {
   "title": "Authentication with Firebase",
+  "description": "Create a React Native app from scratch, implementing authentication with react-native-firebase. This Codorial covers navigation, firebase, redux and more!",
+  "tags": ["react-native", "redux", "react-redux", "firebase", "firebase-auth", "react-native-firebase", "react-navigation"],
   "steps": [
     {
       "title": "Getting Started",

codorials/authentication-with-firebase/integrating-redux.md

@@ -40,13 +40,13 @@ export default createStore(reducer);
 A reducer is a simple JavaScript function which takes two arguments: `state` & `action`. The idea of a reducer is to take "some data" from an `action`
 and return new state.
 
-- `state` is any sort of data which cannot be altered (immutable). A reducer must return a new value each time.
+- `state` is any sort of data, which cannot be altered (immutable). A reducer must return a new value each time. More on this later.
 - `action` is an object containing a `type`, and any unreduced data. More on this later.
 
 ## Integrating Redux into the app
 
 Our Redux store is now ready to be used. `react-redux` provides us with a `Provider` component which "provides" any children
-with access to the store via [context](https://reactjs.org/docs/context.html). Luckily we don't need to worry about this too much as the lirbary
+with access to the store via [context](https://reactjs.org/docs/context.html). Luckily we don't need to worry about this too much as the library
 takes care of the hard work!
 
 Back within our original bootstrap file, we'll wrap the `App` component in the `Provider` component, so our business logic has access to Redux.

codorials/authentication-with-firebase/project-structure.md

@@ -5,7 +5,7 @@ an opinionated guide to how this might look, which will work across both Android
 
 ## Entry file
 
-Every fresh React Native project contains to key files, an `index.android.js` & a `index.ios.js` files which currently individually render a simple React component
+Every fresh React Native project contains two key files, an `index.android.js` & a `index.ios.js` files which currently individually render a simple React component
 with basic styling. Rather than having two separate files, we're going to create a single file so both Android & iOS use it.
 
 We'll achieve this by creating a `src` directory where our own code for the app will live. Create the directory with an `index.js` file, so your

codorials/authentication-with-firebase/understanding-firebase-auth.md

@@ -85,7 +85,7 @@ firebase.auth().signInWithEmailAndPassword('jim.bob@gmail.com', 'supersecret!')
     console.log('Existing User', user);
   })
   .catch((error) => {
-    console.error('Woops, something went wrong!, error);
+    console.error('Woops, something went wrong!', error);
   });
 ```