docs: add project resource documentation (#22)

website/docs/r/resource_project.html.markdown

@@ -0,0 +1,44 @@
+---
+layout: "boundary"
+page_title: "Boundary: project_resource"
+sidebar_current: "docs-boundary-project-resource"
+description: |-
+  Project resource for the Boundary Terraform provider.
+---
+
+# boundary_project_resource 
+The project resource allows you to configure a Boundary project. 
+
+## Example Usage
+
+```hcl
+resource "boundary_project" "foo" {
+  name        = "foo_project"
+  description = "My first project!"
+}
+```
+
+Usage for project-specific resources:
+
+```hcl
+resource "boundary_project" "foo" {
+  name = "foo_project"
+}
+
+resource "boundary_user" "foo" {
+  description = "foo user"
+}
+
+resource "boundary_group" "example" {
+  name        = "My group"
+  description = "My first group!"
+  member_ids  = [boundary_user.foo.id]
+  scope_id    = boundary_project.foo.id
+}
+```
+
+## Argument Reference
+
+The following arguments are optional:
+* `description` - The project description.
+* `name` - The project name. Defaults to the resource name.