docs(npm-packages): Fixed several typos

Author: bampakoa

public/docs/ts/latest/guide/npm-packages.jade

@@ -19,10 +19,10 @@ include ../_util-fns
   (b) they include everything we'll need to build and run the sample applications in this documentation series.
 .l-sub-section
   :marked
-    *Almost* everything. A cookbook or guide chapter may require an additional library such *jQuery*.
+    *Almost* everything. A cookbook or guide chapter may require an additional library such as *jQuery*.
 :marked
   This is far more than we need for QuickStart. 
-  In deed, it's more than we need for most applications. 
+  Indeed, it's more than we need for most applications. 
   There is no harm in installing more than we need. 
   We only serve to the client those packages that the application actually requests.
 
@@ -126,7 +126,7 @@ a(id="other")
 :marked
   ### Other helper libraries
 
-  ***angular2-in-memory-web-api*** - An Angular-supported library that simulates a remote servers web api 
+  ***angular2-in-memory-web-api*** - An Angular-supported library that simulates a remote server's web api 
   without requiring an actual server or real http calls. 
   Good for demos, documentation samples, and early stage development (before we even have a server).
   Learn about it in the [Http Client](server-communication.html#appendix-tour-of-heroes-in-memory-server) chapter.