docs(quickstart): Minor typo fixes. (#2253)

Author: bampakoa

public/docs/ts/latest/quickstart.jade

@@ -225,7 +225,7 @@ h1#root-component Step !{step++}: Create a component and add it to your applicat
   here.
 
   Components are the basic building blocks of Angular applications. A component controls a portion
-  of the screen—a *view*—through its associated template
+  of the screen—a *view*—through its associated template.
 
 a#app-component
 p.
@@ -244,7 +244,7 @@ p.
         `AppComponent` component class:
 
         - a *selector* that specifies a simple CSS selector for an HTML element that represents
-          the component
+          the component.
         - a *template* that tells Angular how to render the component's view.
     * **A component class** that controls the appearance and behavior of a view
     through its template. Here, you only have the root component, `AppComponent`. Since you don't
@@ -343,9 +343,9 @@ aside.is-right
 
 :marked
   That command runs the following two parallel node processes:
-  * The TypeScript compiler in watch mode
-  * A static server called _lite-server_ that loads `index.html` in a browser
-  and refreshes the browser when application files change
+  * The TypeScript compiler in watch mode.
+  * A static file server called _lite-server_ that loads `index.html` in a browser
+  and refreshes the browser when application files change.
 
   In a few moments, a browser tab should open and display the following: