doc: Add docs for http_source datasource

Author: brewkode

website/docs/d/http_source.html.markdown

@@ -0,0 +1,36 @@
+---
+layout: "sumologic"
+page_title: "SumoLogic: sumologic_http_source"
+description: |-
+  Provides a way to retrieve Sumo Logic HTTP Source details (id, names, etc) for an HTTP Source managed by another terraform stack.
+---
+
+# sumologic_http_source
+
+Provides a way to retrieve Sumo Logic HTTP Source details (id, names, etc) for an HTTP Source managed by another terraform stack.
+
+
+## Example Usage
+```hcl
+data "sumologic_http_source" "this" {
+  collector_id = 121212
+  name = "source_name"
+}
+```
+
+A HTTP Source can be looked up by using a combination of `collector_id` & `name`.
+If either `id` or `name` are not present, the data source block fails with a panic (at this point).
+
+## Attributes reference
+
+The following attributes are exported:
+
+- `id` - The internal ID of the collector. This can be used to attach sources to the collector.
+- `name` - The name of the collector.
+- `description` - The description of the collector.
+- `category` - The default source category for any source attached to this collector.
+- `timezone` - The time zone to use for this collector. The value follows the [tzdata][2] naming convention.
+- `multiline` - Multiline processing enabled or not.
+- `url` - The HTTP endpoint to use for sending data to this source.
+
+