Final fixes

Author: jamesdaniels

docs/2-retrieving-data-as-objects.md

@@ -1,7 +1,7 @@
 # 2. Retrieving data as objects
 
 > AngularFire2 synchronizes data as objects using the `FirebaseObjectObservable`. 
-The `FirebaseObjectObservable` is not created by itself, but through the `AngularFire.database` service. 
+The `FirebaseObjectObservable` is not created by itself, but through the `AngularFireDatabase` service. 
 The guide below demonstrates how to retrieve, save, and remove data as objects.
 
 ## Injecting the AngularFireDatabase service

docs/3-retrieving-data-as-lists.md

@@ -1,7 +1,7 @@
 # 3. Retrieving data as lists
 
 > AngularFire2 synchronizes data as lists using the `FirebaseListObservable`. 
-The `FirebaseListObservable` is not created by itself, but through the `AngularFire.database` service. 
+The `FirebaseListObservable` is not created by itself, but through the `AngularFireDatabase` service. 
 The guide below demonstrates how to retrieve, save, and remove data as lists.
 
 ## Injecting the AngularFireDatabase service

docs/version-4-upgrade.md

@@ -5,7 +5,7 @@ AngularFire2 4.0 is a refactor of the AngularFire2 package which implements
 
 ### Removing `AngularFire` for Modularity
 
-Prior to 4.0, AngularFire2 not take advantage of the Firebase SDK's modularity for tree shaking. The `AngularFire` service has now been removed and the library broken up into smaller @NgModules:
+Prior to 4.0, AngularFire2 did not take advantage of the Firebase SDK's modularity for tree shaking. The `AngularFire` service has now been removed and the library broken up into smaller @NgModules:
 
 * `AngularFireModule`
 * `AngularFireDatabaseModule`
@@ -22,7 +22,7 @@ constructor(af: AngularFire) {
 Should now be:
 
 ```typescript
-constructor(db: AngularFireDatabasem, afAuth: AngularFireAuth) {
+constructor(db: AngularFireDatabase, afAuth: AngularFireAuth) {
   db.list('foo');
   afAuth.authState;
 }