Typo fixes (#581)

guides/introduction/your-first-site.md

@@ -96,15 +96,15 @@ mix phx.server
 
 Visit http://localhost:4000 to see the default home page created by Beacon.
 
-## Acessing LiveAdmin to manage your site
+## Accessing LiveAdmin to manage your site
 
 Let's customize the home page. Visit http://localhost:4000/admin and you should see the `my_site` that you just created listed on the admin interface.
 
 Now let's create the resources for our first site, and we'll starting by creating the resources used by the home page before we customize its template.
 
 ## Live Data
 
-We want to display the current yeat at the footer of the home page as the assign `<%= @current_year %>`. In Beacon we use Live Data to create and modify assigns at runtime, let's do it.
+We want to display the current year at the footer of the home page as the assign `<%= @current_year %>`. In Beacon we use Live Data to create and modify assigns at runtime, let's do it.
 
 Go to http://localhost:4000/admin/my_site/live_data to create a new path `/` and then create a new assign named `current_year` using the `elixir` format with the following value: