Minor cleanup in comments

OdeToFoodVisualStudio/OdeToFoodVisualStudio/IGreeter.cs

@@ -7,7 +7,6 @@ public interface IGreeter
 
     // VSvsRider: Visual Studio does allow implementing IGreeter from usage when the Greeter class has been declared; however, Rider does have the advantage of providing the "Create derived type"
     // context action upon the IGreeter declaration.
-    // Presentation: proceed in "Creating and injecting greeting service" at 1:25
     class Greeter : IGreeter
     {
         public string GetMessageOfTheDay()

OdeToFoodVisualStudio/OdeToFoodVisualStudio/Startup.cs

@@ -29,7 +29,7 @@ public void Configure(IApplicationBuilder app, IHostingEnvironment env, IGreeter
             {
                 // Configuration sources by descending priority: 1. command-line parameter, 2. environment variable, 3. appsettings.json (enables storing dev settings in appsettings.json and overriding them in production wtih environment variables for example)
 
-                // RDVS: doesn look like there's an action to add a new comment (there are actions to comment/decomment existing code; and to add documentation comment)
+                // RDVS: doesn't look like there's an action to add a new comment (there are actions to comment/decomment existing code; and to add documentation comment)
                 // RDVS: VS create from usage isn't quite on par right now: given the undeclared IGreeter interface in method parameteres and the below line that uses an undeclared method,
                 // <strike>1. You must create the interface from usage first, and only then can you create the method - so there's no chaining in Create from Usage;</strike> - same in Rider :(
                 // 2. The created symbol doesn't get focus: both when it's created in a separate file and when it's created in the same file