address a few review comments

cloud/gce

@@ -222,7 +222,7 @@ def create_instances(module, gce, instance_names):
     """Creates new instances. Attributes other than instance_names are picked
     up from 'module'
 
-    module : AnsbileModule object
+    module : AnsibleModule object
     gce: authenticated GCE libcloud driver
     instance_names: python list of instance names to create
 
@@ -346,7 +346,7 @@ def main():
             metadata = dict(),
             name = dict(),
             network = dict(default='default'),
-            persistent_boot_disk = dict(choices=BOOLEANS, default=False),
+            persistent_boot_disk = dict(type='bool', choices=BOOLEANS, default=False),
             state = dict(choices=['active', 'present', 'absent', 'deleted'],
                     default='present'),
             tags = dict(type='list'),

cloud/gce_lb

@@ -21,7 +21,7 @@ DOCUMENTATION = '''
 module: gce_lb
 short_description: create/destroy GCE load-balancer resources
 description:
-    - This module can create and destroy Google Compue Engine C(loadbalancer)
+    - This module can create and destroy Google Compute Engine C(loadbalancer)
       and C(httphealthcheck) resources.  The primary LB resource is the
       C(load_balancer) resource and the health check parameters are all
       prefixed with I(httphealthcheck).