Cosmetic doc changes:

- Having a map 'foo' with a key 'foo' is confusing.
  - it's -> its

website/docs/configuration/variables.html.md

@@ -306,14 +306,14 @@ Then the value of `foo` will be `baz` since it was the last value seen.
 However, for maps, the values are merged:
 
 ```shell
-$ terraform apply -var 'foo={foo="bar"}' -var 'foo={bar="baz"}'
+$ terraform apply -var 'foo={quux="bar"}' -var 'foo={bar="baz"}'
 ```
 
 The resulting value of `foo` will be:
 
 ```shell
 {
-  foo = "bar"
+  quux = "bar"
   bar = "baz"
 }
 ```

website/intro/getting-started/build.html.md

@@ -122,7 +122,7 @@ initializes various local settings and data that will be used by subsequent
 commands.
 
 Terraform uses a plugin based architecture to support the numerous infrastructure 
-and service providers available. As of Terraform version 0.10.0, each "Provider" is it's 
+and service providers available. As of Terraform version 0.10.0, each "Provider" is its
 own encapsulated binary distributed separately from Terraform itself. The
 `terraform init` command will automatically download and install any Provider
 binary for the providers in use within the configuration, which in this case is