Apply suggestions from code review

Co-authored-by: Rodrigo Lazo <[email protected]>

Author: vkryachko

contributor-docs/README.md

@@ -1,6 +1,6 @@
 # Contributor documentation
 
-This site is a collection of docs and best practices useful to contributors to Firebase Android SDKs.
+This site is a collection of docs and best practices for contributors to Firebase Android SDKs.
 It describes how Firebase works on Android and provides guidance on how to build/maintain a Firebase SDK.
 
 ## New to Firebase?

contributor-docs/how_firebase_works.md

@@ -10,24 +10,24 @@ One of the biggest strengths for Firebase clients is the ease of integration. In
 * `Firebase Performance` automatically tracks app startup time, all network requests and screen performance
 * `Crashlytics` automatically captures all application crashes, ANRs and non-fatals
 
-The ability to initialize and start operating automatically is a core feature of Firebase that makes onboarding and adoption very simple. However with this advantage comes a great responsibility to keep the application snappy and not to slow down application startup for 3p developers as it can stand in the way of user adoption for the application.
+This feature makes onboarding and adoption very simple. However, comes with the great responsibility of keeping the application snappy. We shouldn't slow down application startup for 3p developers as it can stand in the way of user adoption of their application.
 
 ### Automatic Inter-Product Discovery
 
-In addition to initializing automatically, when present together in an application, Firebase products can detect each other’s presence and automatically provide additional functionality to the developer, e.g.:
+When present together in an application, Firebase products can detect each other and automatically provide additional functionality to the developer, e.g.:
 
 * `Firestore` automatically detects `Auth` and `AppCheck` to protect read/write access to the database
-* `Crashlytics` integrates with `Analytics`, when it’s available, to provide additional insights into the application behavior and enables safe app rollouts
+* `Crashlytics` integrates with `Analytics`, when available, to provide additional insights into the application behavior and enables safe app rollouts
 
 ## FirebaseApp at the Core of Firebase
 
-Regardless of what Firebase SDKs are present in the app, the main initialization point of Firebase is `FirebaseApp` it acts as a container for all SDKs, manages their configuration, initialization and lifecycle.
+Regardless of what Firebase SDKs are present in the app, the main initialization point of Firebase is `FirebaseApp`. It acts as a container for all SDKs, manages their configuration, initialization and lifecycle.
 
 ### Initialization
 
-`FirebaseApp` gets initialized with the help of `FirebaseApp#initializeApp()`, this happens [automatically at app startup](https://firebase.blog/posts/2016/12/how-does-firebase-initialize-on-android) or manually by the developer.
+`FirebaseApp` gets initialized with the help of `FirebaseApp#initializeApp()`. This happens [automatically at app startup](https://firebase.blog/posts/2016/12/how-does-firebase-initialize-on-android) or manually by the developer.
 
-When that happens `FirebaseApp` discovers all Firebase SDKs present in the app, determines the dependency graph between products(for inter-product functionality) and initializes `eager` products that need to start immediately, e.g. `Crashlytics` and `FirebasePerformance`.
+During initialization, `FirebaseApp` discovers all Firebase SDKs present in the app, determines the dependency graph between products(for inter-product functionality) and initializes `eager` products that need to start immediately, e.g. `Crashlytics` and `FirebasePerformance`.
 
 ### Firebase Configuration
 

contributor-docs/onboarding/new_sdk.md

@@ -5,14 +5,14 @@ parent: Onboarding
 # Creating a new Firebase SDK
 
 Want to create a new SDK in
-[Firebase/firebase-android-sdk](https://github.com/firebase/firebase-android-sdk)?
+[firebase/firebase-android-sdk](https://github.com/firebase/firebase-android-sdk)?
 Read on.
 
 {:toc}
 
 ## Repository layout and Gradle
 
-[Firebase/firebase-android-sdk](https://github.com/firebase/firebase-android-sdk)
+[firebase/firebase-android-sdk](https://github.com/firebase/firebase-android-sdk)
 uses a multi-project Gradle build to organize the different libraries it hosts.
 As a consequence, each project/product within this repo is hosted under its own
 subdirectory with its respective build file(s).