Fix typo in README.md (#557)

Small update

Author: bluPhy

dependencies/README.md

@@ -1,7 +1,7 @@
 # Dependencies
 
 This folder contains scripts and configuration to build
-dependenices requires by IAP Desktop. The dependencies
+dependencies requires by IAP Desktop. The dependencies
 are built into NuGet packages and published to a NuGet feed.
 
 ## Building
@@ -26,4 +26,4 @@ Steps to build the dependencies requires:
     %WORKSPACE%\dependencies\NuGetPackages containing
     the dependency packages. 
     
-    The repository is automatically registered with NuGet.
+    The repository is automatically registered with NuGet.