Update variables.html.md regarding variable files

Add information under Variable Files to explain how terraform.tfvars file is used.  currently that documenation only exists in the getting started guide.  The added information was taken directly from the getting started guide.
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John Bruett 2016-10-17 12:29:57 -04:00 committed by GitHub
parent c7171e7e6e
commit 08ef4c0dd3

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@ -195,10 +195,15 @@ $ TF_VAR_somemap='{foo = "bar", baz = "qux"}' terraform plan
<a id="variable-files"></a>
Variables can be collected in files and passed all at once using the
`-var-file=foo.tfvars` flag. The format for variables in `.tfvars`
files is [HCL](/docs/configuration/syntax.html#HCL), with top level key/value
pairs:
`-var-file=foo.tfvars` flag.
If a "terraform.tfvars" file is present in the current directory, Terraform
automatically loads it to populate variables. If the file is named something
else, you can use the -var-file flag directly to specify a file. These files
are the same syntax as Terraform configuration files. And like Terraform
configuration files, these files can also be JSON. The format for variables in
`.tfvars` files is [HCL](/docs/configuration/syntax.html#HCL), with top level
key/value pairs:
```
foo = "bar"