Sumologic -> Sumo Logic, fix some docs

Author: Sean Sain

website/docs/index.html.markdown

@@ -2,15 +2,15 @@
 layout: "sumologic"
 page_title: "Provider: SumoLogic"
 description: |-
-  This provider is used to manage resources supported by Sumologic.
+  This provider is used to manage resources supported by Sumo Logic.
 ---
 
-# Sumologic Provider
-This provider is used to manage resources supported by Sumologic. The provider needs to be configured with the proper credentials before it can be used.
+# Sumo Logic Provider
+This provider is used to manage resources supported by Sumo Logic. The provider needs to be configured with the proper credentials before it can be used.
 
 ## Example Usage
 ```hcl
-# Configure the Sumologic Provider
+# Configure the Sumo Logic Provider
 provider "sumologic" {
     access_id   = "${var.sumologic_access_id}"
     access_key  = "${var.sumologic_access_key}"
@@ -69,11 +69,11 @@ provider "sumologic" { }
 ```bash
 $ export SUMOLOGIC_ACCESSID="your-access-id"
 $ export SUMOLOGIC_ACCESSKEY="your-access-key"
+$ export SUMOLOGIC_ENVIRONMENT=us2
 $ terraform plan
 ```
 
 ## Argument Reference
-- `access_id` - (Optional) This is the Sumo Logic Access ID. It must be provided, but it can also be source from the SUMOLOGIC_ACCESSID environment variable.
-- `access_key` - (Optional) This is the Sumo Logic Access Key. It must be provided, but it can also be sourced from the SUMOLOGIC_ACCESSKEY variable.
-- `environment` - (Optional) This is the API endpoint to use. Default is `us2`. See the [Sumo Logic documentation](https://help.sumologic.com/APIs/General_API_Information/Sumo_Logic_Endpoints_and_Firewall_Security) for details on which environment you should use. This value can also be source from the SUMOLOGIC_ENVIRONMENT variable.
-- `base_url` - (Optional) This is the API endpoint base URL to use. You can specify that instead of the environment. It can also be sourced from SUMOLOGIC_BASE_URL environment variable.
+- `access_id` - (Required) This is the Sumo Logic Access ID. It must be provided, but it can also be source from the SUMOLOGIC_ACCESSID environment variable.
+- `access_key` - (Required) This is the Sumo Logic Access Key. It must be provided, but it can also be sourced from the SUMOLOGIC_ACCESSKEY variable.
+- `environment` - (Required) This is the API endpoint to use. See the [Sumo Logic documentation](https://help.sumologic.com/APIs/General_API_Information/Sumo_Logic_Endpoints_and_Firewall_Security) for details on which environment you should use. It must be provided, but it can be sourced from the SUMOLOGIC_ENVIRONMENT variable.

website/sumologic.erb

@@ -7,7 +7,7 @@
           </li>
 
           <li>
-          <a href="/docs/providers/sumologic/index.html">SumoLogic Provider</a>
+          <a href="/docs/providers/sumologic/index.html">Sumo Logic Provider</a>
           </li>
 
           <li>