* docs: update AWS examples. Disntinguish between alb and alb listener datasource
* more hcl highlighting
* more hcl
* fix missing end quote in docs
* docs: finish updates to AWS data source highlights
Also updates layout to distinguish some resources
This will allows us to filter a specific ebs_volume for attachment to an
aws_instance
```
make testacc TEST=./builtin/providers/aws TESTARGS='-run=TestAccAWSEbsVolumeDataSource_'✹
==> Checking that code complies with gofmt requirements...
go generate $(go list ./... | grep -v /terraform/vendor/)
2016/11/01 12:39:19 Generated command/internal_plugin_list.go
TF_ACC=1 go test ./builtin/providers/aws -v
-run=TestAccAWSEbsVolumeDataSource_ -timeout 120m
=== RUN TestAccAWSEbsVolumeDataSource_basic
--- PASS: TestAccAWSEbsVolumeDataSource_basic (28.74s)
=== RUN TestAccAWSEbsVolumeDataSource_multipleFilters
--- PASS: TestAccAWSEbsVolumeDataSource_multipleFilters (28.37s)
PASS
ok github.com/hashicorp/terraform/builtin/providers/aws57.145s
```