update README

Author: maiconrocha

README.md

@@ -133,12 +133,10 @@ No modules.
 | <a name="input_ami_regions_kms_key"></a> [ami\_regions\_kms\_key](#input\_ami\_regions\_kms\_key) | (Optional) A list of AWS Regions to share the AMI with and also target KMS Key in each region | `map(string)` | `{}` | no |
 | <a name="input_attach_custom_policy"></a> [attach\_custom\_policy](#input\_attach\_custom\_policy) | (Required) Attach custom policy to the EC2 Instance Profile, if true, ARN of the custom policy needs to be specified on the variable custom\_policy\_arn | `bool` | `false` | no |
 | <a name="input_build_component_arn"></a> [build\_component\_arn](#input\_build\_component\_arn) | (Required) List of ARNs for the Build EC2 Image Builder Build Components | `list(string)` | `[]` | no |
-| <a name="input_create_security_group"></a> [create\_security\_group](#input\_create\_security\_group) | (Optional) Create security group for EC2 Image Builder instances | `bool` | `true` | no |
+| <a name="input_create_security_group"></a> [create\_security\_group](#input\_create\_security\_group) | (Optional) Create security group for EC2 Image Builder instances. Please note this security group will be created with default egress rule to 0.0.0.0/0 CIDR Block. In case you want to have a more restrict set of rules, please provide your own security group id on security\_group\_ids variable | `bool` | `true` | no |
 | <a name="input_custom_policy_arn"></a> [custom\_policy\_arn](#input\_custom\_policy\_arn) | (Optional) ARN of the custom policy to be attached to the EC2 Instance Profile | `string` | `null` | no |
 | <a name="input_imagebuilder_image_recipe_kms_key_arn"></a> [imagebuilder\_image\_recipe\_kms\_key\_arn](#input\_imagebuilder\_image\_recipe\_kms\_key\_arn) | (Required) KMS Key ARN(CMK) for encrypting Imagebuilder Image Recipe Block Device Mapping | `string` | `null` | no |
 | <a name="input_instance_key_pair"></a> [instance\_key\_pair](#input\_instance\_key\_pair) | (Optional) EC2 key pair to add to the default user on the builder(In case existent EC2 Key Pair is provided) | `string` | `null` | no |
-| <a name="input_instance_metadata_http_put_hop_limit"></a> [instance\_metadata\_http\_put\_hop\_limit](#input\_instance\_metadata\_http\_put\_hop\_limit) | The number of hops that an instance can traverse to reach its metadata. | `number` | `null` | no |
-| <a name="input_instance_metadata_http_tokens"></a> [instance\_metadata\_http\_tokens](#input\_instance\_metadata\_http\_tokens) | (Optional) Whether a signed token is required for instance metadata retrieval requests. Valid values: required, optional. | `string` | `"optional"` | no |
 | <a name="input_instance_types"></a> [instance\_types](#input\_instance\_types) | (Optional) Instance type for the EC2 Image Builder Instances. <br>Will be set by default to c5.large. Please check the AWS Pricing for more information about the instance types. | `list(string)` | <pre>[<br>  "c5.large"<br>]</pre> | no |
 | <a name="input_managed_components"></a> [managed\_components](#input\_managed\_components) | (Optional) Specify the name and version of the AWS managed components that are going to be part of the image recipe | <pre>list(object({<br>    name    = string,<br>    version = string<br>  }))</pre> | `[]` | no |
 | <a name="input_recipe_version"></a> [recipe\_version](#input\_recipe\_version) | (Required) The semantic version of the image recipe. This version follows the semantic version syntax. e.g.: 0.0.1 | `string` | `"0.0.1"` | no |