Fix small bug in ReadMe doc and add consistent periods. (#622)

Author: shawnkoon

README.md

@@ -10,24 +10,24 @@ This repo contains the website configuration and documentation powering the
 1.  Git
 1.  Node: install version 6.2.2 or greater. Node v8 would be ideal.
 1.  Yarn: See
-    [Yarn website for installation instructions](https://yarnpkg.com/lang/en/docs/install/)
-1.  A fork of the repo (for any contributions)
+    [Yarn website for installation instructions](https://yarnpkg.com/lang/en/docs/install/).
+1.  A fork of the repo (for any contributions).
 1.  A clone of the `react-native-website` repo.
 1.  Docusaurus: Run `yarn global add docusaurus-init` or `npm install --global docusaurus-init`
 1.  Prettier: See
-    [Prettier website for installation instructions](https://prettier.io/docs/en/install.html)
+    [Prettier website for installation instructions](https://prettier.io/docs/en/install.html).
 
 ### Installation
 
-1.  `cd react-native-website` to go into the project root
-1.  `cd website` to go into the website portion of the project
+1.  `cd react-native-website` to go into the project root.
+1.  `cd website` to go into the website portion of the project.
 1.  `yarn` to install the website's npm dependencies (or `npm install`, if not
-    using Yarn)
+    using Yarn).
 
 ### Running locally
 
-1.  `yarn start` to start the development server (powered by Docusaurus) (or `npm start`, if not using Yarn)
-1.  `open http://localhost:3000/` to open the site in your favorite browser
+1.  `yarn start` to start the development server (powered by Docusaurus) (or `npm start`, if not using Yarn).
+1.  `open http://localhost:3000/` to open the site in your favorite browser.
 
 # Overview
 
@@ -106,9 +106,9 @@ be in reverse chronological order.
 
 #### Cutting a new version
 
-1.  `cd react-native-website` to go into the project root
-1.  `cd website` to go into the website portion of the project
-1.  Run `yarn version <version>` where '<version>' is the new version being
+1.  `cd react-native-website` to go into the project root.
+1.  `cd website` to go into the website portion of the project.
+1.  Run `yarn version <version>` where `<version>` is the new version being
     released.
 
 ## Website configuration
@@ -129,14 +129,14 @@ React Native showcase.
 ### Create a branch
 
 1.  `git checkout master` from any folder in your local `react-native-website`
-    repository
-1.  `git pull origin master` to ensure you have the latest main code
+    repository.
+1.  `git pull origin master` to ensure you have the latest main code.
 1.  `git checkout -b the-name-of-my-branch` (replacing `the-name-of-my-branch`
-    with a suitable name) to create a branch
+    with a suitable name) to create a branch.
 
 ### Make the change
 
-1.  Follow the "Running locally" instructions
+1.  Follow the "Running locally" instructions.
 1.  Save the files and check in the browser. Some changes may require a server restart.
 1.  Changes to /docs will only be visible in the latest version of the documentation (master).
 
@@ -150,10 +150,10 @@ React Native showcase.
 ### Push it
 
 1.  Run `yarn prettier` to ensure your changes are consistent with other files in
-    the repo
+    the repo.
 1.  `git add -A && git commit -m "My message"` (replacing `My message` with a
     commit message, such as `Fixed header logo on Android`) to stage and commit
-    your changes
+    your changes.
 1.  `git push my-fork-name the-name-of-my-branch`
 1.  Go to the
     [react-native-website repo](https://github.com/facebook/react-native-website)