docs: Updated README

Author: jamesiarmes

README.md

@@ -13,7 +13,7 @@ to match your desired configuration. For example, to create a new distribution
 
 ```hcl
 module "cloudfront_waf" {
-  source = "github.com/codeforamerica/tofu-modules-aws-cloudfront-waf?ref=1.8.2"
+  source = "github.com/codeforamerica/tofu-modules-aws-cloudfront-waf?ref=1.9.0"
 
   project     = "my-project"
   environment = "dev"
@@ -76,7 +76,7 @@ distribution at `www.my-project.org`, you could use the following:
 
 ```hcl
 module "cloudfront_waf" {
-  source = "github.com/codeforamerica/tofu-modules-aws-cloudfront-waf?ref=1.8.2"
+  source = "github.com/codeforamerica/tofu-modules-aws-cloudfront-waf?ref=1.9.0"
 
   project     = "my-project"
   environment = "dev"
@@ -160,7 +160,7 @@ Simply specify the headers you want to add in a map. For example:
 
 ```hcl
 module "cloudfront_waf" {
-  source = "github.com/codeforamerica/tofu-modules-aws-cloudfront-waf?ref=1.8.2"
+  source = "github.com/codeforamerica/tofu-modules-aws-cloudfront-waf?ref=1.9.0"
 
   project     = "my-project"
   environment = "dev"
@@ -196,7 +196,7 @@ resource "aws_wafv2_ip_set" "security_scanners" {
 }
 
 module "cloudfront_waf" {
-  source = "github.com/codeforamerica/tofu-modules-aws-cloudfront-waf?ref=1.8.2"
+  source = "github.com/codeforamerica/tofu-modules-aws-cloudfront-waf?ref=1.9.0"
 
   project     = "my-project"
   environment = "staging"
@@ -235,7 +235,7 @@ For example, to rate limit requests to 300 over a 5-minute period:
 
 ```hcl
 module "cloudfront_waf" {
-  source = "github.com/codeforamerica/tofu-modules-aws-cloudfront-waf?ref=1.8.2"
+  source = "github.com/codeforamerica/tofu-modules-aws-cloudfront-waf?ref=1.9.0"
 
   project     = "my-project"
   environment = "staging"
@@ -281,7 +281,7 @@ ensure it comes after the common and SQLi rule sets.
 
 ```hcl
 module "cloudfront_waf" {
-  source = "github.com/codeforamerica/tofu-modules-aws-cloudfront-waf?ref=1.8.2"
+  source = "github.com/codeforamerica/tofu-modules-aws-cloudfront-waf?ref=1.9.0"
 
   project     = "my-project"
   environment = "staging"
@@ -323,7 +323,7 @@ conditions that must be met for the request to be allowed through.
 
 ```hcl
 module "cloudfront_waf" {
-  source = "github.com/codeforamerica/tofu-modules-aws-cloudfront-waf?ref=1.8.2"
+  source = "github.com/codeforamerica/tofu-modules-aws-cloudfront-waf?ref=1.9.0"
 
   project     = "my-project"
   environment = "staging"