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DOC: updated readme

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modules/networking/vpc-endpoints/README.md
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@ -21,9 +21,14 @@ unless an empty list `[]` is provided as input.
* s3
* dynamodb
For gateway endpoints, all route tables in the VPC will be updated with routes to the private links.
Full documentation: https://docs.aws.amazon.com/vpc/latest/privatelink/gateway-endpoints.html
## Interface endpoints
Interface endpoints are placed in one subnet for every AZ. Security group is created automatically
and allow access from the VPC's cidr, plus all additional CIDRs if applicable.
At time of writing, AWS provides 200+ interface endpoints:
* access-analyzer
* account
@ -255,3 +260,18 @@ At time of writing, AWS provides 200+ interface endpoints:
Full documentation: https://docs.aws.amazon.com/vpc/latest/privatelink/aws-services-privatelink-support.html
## Example
```hcl
module "vpc-ep" {
count = var.create-free-vpc-endpoints ? 1 : 0
source = "../vpc-endpoints"
gateway-ep-services = ["s3", "dynamodb"]
interface-ep-services = []
resource-prefix = var.resource-prefix
vpc-id = aws_vpc.vpc.id
secondary_cidrs = var.secondary_cidr_blocks
}
```