Cleanup of the resources and variables pages

1. Added a heredoc example to the variables page.
2. Tidied up and added headers.
3. Some minor whitespace and grammar edits.

website/source/docs/configuration/resources.html.md

@@ -41,6 +41,8 @@ configuration is dependent on the type, and is documented for each
 resource type in the
 [providers section](/docs/providers/index.html).
 
+### Meta-parameters
+
 There are **meta-parameters** available to all resources:
 
   * `count` (int) - The number of identical resources to create.
@@ -88,7 +90,7 @@ which will match all attribute names. Using a partial string together with a
 wildcard (e.g. `"rout*"`) is **not** supported.
 
 
--------------
+### Connection block
 
 Within a resource, you can optionally have a **connection block**.
 Connection blocks describe to Terraform how to connect to the
@@ -103,7 +105,7 @@ but other data must be specified by the user.
 The full list of settings that can be specified are listed on
 the [provisioner connection page](/docs/provisioners/connection.html).
 
--------------
+### Provisioners
 
 Within a resource, you can specify zero or more **provisioner
 blocks**. Provisioner blocks configure
@@ -129,8 +131,9 @@ You can use the `${count.index}`
 [interpolation](/docs/configuration/interpolation.html) along with a map
 [variable](/docs/configuration/variables.html) to accomplish this.
 
-For example, here's how you could create three [AWS Instances](/docs/providers/aws/r/instance.html) each with their own static IP
+For example, here's how you could create three [AWS
-address:
+Instances](/docs/providers/aws/r/instance.html) each with their own
+static IP address:
 
 ```
 variable "instance_ips" {
@@ -171,8 +174,15 @@ The value of the field should be `TYPE` or `TYPE.ALIAS`. The `ALIAS` value
 comes from the `alias` field value when configuring the
 [provider](/docs/configuration/providers.html).
 
-If no `provider` field is specified, the default (provider with no alias)
+```
-provider is used.
+provider "aws" {
+  alias = "west"
+
+  # ...
+}
+```
+
+If no `provider` field is specified, the default provider is used.
 
 ## Syntax
 

website/source/docs/configuration/variables.html.md

@@ -75,6 +75,8 @@ These are the parameters that can be set:
 **Note**: Default values can be strings, lists, or maps. If a default is
 specified, it must match the declared type of the variable.
 
+### Strings
+
 String values are simple and represent a basic key to value
 mapping where the key is the variable name. An example is:
 
@@ -85,6 +87,20 @@ variable "key" {
 }
 ```
 
+A multi-line string value can be provided using heredoc syntax.
+
+```
+variable "long_key" {
+  type = "string"
+  default = <<EOF
+This is a long key.
+Running over several lines.
+EOF
+}
+```
+
+### Maps
+
 A map allows a key to contain a lookup table. This is useful
 for some values that change depending on some external pivot.
 A common use case for this is mapping cloud images to regions.
@@ -100,6 +116,8 @@ variable "images" {
 }
 ```
 
+### Lists
+
 A list can also be useful to store certain variables. For example:
 
 ```