Merge pull request #23681 from alexjurkiewicz/transit-gateway-cidr

docs: Fix transit gateway CIDR blocks description

website/docs/r/ec2_transit_gateway.html.markdown

@@ -29,7 +29,7 @@ The following arguments are supported:
 * `description` - (Optional) Description of the EC2 Transit Gateway.
 * `dns_support` - (Optional) Whether DNS support is enabled. Valid values: `disable`, `enable`. Default value: `enable`.
 * `tags` - (Optional) Key-value tags for the EC2 Transit Gateway. If configured with a provider [`default_tags` configuration block](https://www.terraform.io/docs/providers/aws/index.html#default_tags-configuration-block) present, tags with matching keys will overwrite those defined at the provider-level.
-* `transit_gateway_cidr_blocks` - (Optional) The list of associated CIDR blocks. It can contain up to 1 IPv4 CIDR block of size up to /24 and up to one IPv6 CIDR block of size up to /64. The IPv4 block must not be from range 169.254.0.0/16.
+* `transit_gateway_cidr_blocks` - (Optional) One or more IPv4 or IPv6 CIDR blocks for the transit gateway. Must be a size /24 CIDR block or larger for IPv4, or a size /64 CIDR block or larger for IPv6.
 * `vpn_ecmp_support` - (Optional) Whether VPN Equal Cost Multipath Protocol support is enabled. Valid values: `disable`, `enable`. Default value: `enable`.
 
 ## Attributes Reference