fix typos in documentation

Change-Id: Ia3534bdaf26c58d618b4acd5df1d75322a088170

spec/classes/nova_compute_libvirt_qemu_spec.rb

@@ -35,7 +35,7 @@ describe 'nova::compute::libvirt::qemu' do
       }).that_notifies('Service[libvirt]') }
     end
 
-    context 'when configuring qemu with overriden parameters' do
+    context 'when configuring qemu with overridden parameters' do
       let :params do
         {
           :configure_qemu => true,

spec/classes/nova_conductor_spec.rb

@@ -39,7 +39,7 @@ describe 'nova::conductor' do
       )}
     end
 
-    context 'with overriden workers parameter' do
+    context 'with overridden workers parameter' do
       let :params do
         {:workers => '5' }
       end

spec/classes/nova_db_spec.rb

@@ -24,7 +24,7 @@ describe 'nova::db' do
       it { is_expected.to_not contain_nova_config('database/max_overflow') }
     end
 
-    context 'with overriden parameters' do
+    context 'with overridden parameters' do
       before :each do
         params.merge!(
           :database_connection           => 'mysql+pymysql://user:pass@db/db1',

spec/classes/nova_init_spec.rb

@@ -361,7 +361,7 @@ describe 'nova' do
       end
     end
 
-    context 'with amqp overriden parameters' do
+    context 'with amqp overridden parameters' do
       let :params do
         { :amqp_idle_timeout  => '60',
           :amqp_trace         => true,

spec/classes/nova_migration_qemu_spec.rb

@@ -35,7 +35,7 @@ describe 'nova::migration::qemu' do
       }).that_notifies('Service[libvirt]') }
     end
 
-    context 'when configuring qemu with overriden parameters' do
+    context 'when configuring qemu with overridden parameters' do
       let :params do
         {
           :configure_qemu => true,