fix tilde usage

Author: mwunderl

tuts/001-lightsail-gs/lightsail-gs.md

@@ -14,9 +14,9 @@ Before you begin this tutorial, make sure you have the following:
 ### Cost considerations
 
 The resources you create in this tutorial will incur the following approximate costs if left running:
-- Lightsail nano instance: $5.00 USD per month (~$0.0068 per hour)
-- 8 GB additional storage: $0.80 USD per month (~$0.0011 per hour)
-- Instance snapshot: ~$1.00 USD per month for a 20 GB snapshot (~$0.0014 per hour)
+- Lightsail nano instance: $5.00 USD per month (approximately $0.0068 per hour)
+- 8 GB additional storage: $0.80 USD per month (approximately $0.0011 per hour)
+- Instance snapshot: approximately $1.00 USD per month for a 20 GB snapshot (approximately $0.0014 per hour)
 
 The total cost for running this tutorial for one hour is approximately $0.0093 USD. The tutorial includes cleanup instructions to help you avoid ongoing charges. New Lightsail customers may be eligible for the free tier, which includes the $5 USD plan free for one month (up to 750 hours).
 

tuts/008-vpc-private-servers-gs/vpc-private-servers-gs.md

@@ -20,10 +20,10 @@ Before you begin this tutorial, you need:
   * At least 1 Application Load Balancer
 
 **Estimated cost**: The resources created in this tutorial will incur charges in your AWS account:
-* NAT Gateways: ~$0.045 per hour, plus data processing charges
-* Elastic IP addresses: Free when associated with running instances, ~$0.005 per hour when not associated
+* NAT Gateways: approximately $0.045 per hour, plus data processing charges
+* Elastic IP addresses: Free when associated with running instances, approximately $0.005 per hour when not associated
 * EC2 instances: Varies by instance type (t3.micro used in this tutorial)
-* Application Load Balancer: ~$0.0225 per hour, plus data processing charges
+* Application Load Balancer: approximately $0.0225 per hour, plus data processing charges
 
 ## Create the VPC and subnets
 

tuts/035-workspaces-personal/workspaces-personal.md

@@ -28,13 +28,13 @@ Before you begin this tutorial, make sure you have the following:
 Running resources created in this tutorial will incur costs in your AWS account. Approximate costs include:
 
 - **WorkSpaces Personal (Standard bundle with Windows)**:
-  - AlwaysOn mode: ~$35/month
-  - AutoStop mode: ~$9.75/month + $0.26/hour of usage
+  - AlwaysOn mode: approximately $35/month
+  - AutoStop mode: approximately $9.75/month + $0.26/hour of usage
 
 - **Directory Services** (if you need to create one):
-  - AWS Simple AD (Small): ~$36.50/month
-  - AWS Managed Microsoft AD (Standard): ~$292/month
-  - AD Connector: ~$36.50/month
+  - AWS Simple AD (Small): approximately $36.50/month
+  - AWS Managed Microsoft AD (Standard): approximately $292/month
+  - AD Connector: approximately $36.50/month
 
 Additional charges may apply for data transfer, increased storage volumes, and application licensing. For the most current pricing information, see the [Amazon WorkSpaces Pricing page](https://aws.amazon.com/workspaces/pricing/).
 

tuts/037-emr-gs/emr-gs.md

@@ -15,7 +15,7 @@ Before you begin this tutorial, make sure you have the following:
 
 This tutorial creates AWS resources that will incur charges. The estimated cost for running this tutorial for one hour is approximately $0.20 USD (in the US East region), which includes:
 
-- EMR cluster with 3 m5.xlarge instances: ~$0.19/hour
+- EMR cluster with 3 m5.xlarge instances: approximately $0.19/hour
 - S3 storage and requests: <$0.01/hour
 
 To minimize costs, make sure to follow the cleanup instructions at the end of the tutorial to terminate all resources.
@@ -326,7 +326,7 @@ Step 1.
 
 **Connect via SSH**
 
-Use the following command to connect to the primary node of your cluster. Replace "j-1234ABCD5678" with your actual cluster ID. Replace "~/path/to/your-key-pair.pem" with the path to your key pair file. In this example, we use "~/emr-tutorial-key" as the path to your key pair.
+Use the following command to connect to the primary node of your cluster. Replace "j-1234ABCD5678" with your actual cluster ID. Replace "`~/path/to/your-key-pair.pem`" with the path to your key pair file. In this example, we use "`~/emr-tutorial-key`" as the path to your key pair.
 
 ```bash
 aws emr ssh --cluster-id j-1234ABCD5678 --key-pair-file ~/path/to/your-key-pair.pem
@@ -374,7 +374,7 @@ sudo cat /var/log/spark/spark-history-server.out
 **Troubleshooting**
 
 • **Connection timeout:** Verify that your security group allows SSH (port 22) from your IP
-• **Permission denied:** Ensure your key pair file has correct permissions. Replace "~/emr-tutorial-key.pem" with the path to your key pair file. In this example, we use "~/emr-tutorial-key" as the path to your key pair.
+• **Permission denied:** Ensure your key pair file has correct permissions. Replace "`~/emr-tutorial-key.pem`" with the path to your key pair file. In this example, we use "`~/emr-tutorial-key`" as the path to your key pair.
 ```
 chmod 400 ~/emr-tutorial-key.pem
 ```

tuts/057-amazon-managed-streaming-for-apache-kafka-gs/amazon-managed-streaming-for-apache-kafka-gs.md

@@ -15,9 +15,9 @@ Before you begin this tutorial, make sure you have the following:
 
 This tutorial creates AWS resources that will incur costs while they exist. The estimated cost for running the resources in this tutorial for one hour is approximately $0.76 USD, with the MSK cluster accounting for most of this cost. The costs break down as follows:
 
-- MSK Cluster (3 brokers, kafka.t3.small): ~$0.45/hour
-- MSK Storage (3 GB minimum): ~$0.30/hour
-- EC2 Instance (t3.micro or t2.micro): ~$0.01/hour
+- MSK Cluster (3 brokers, kafka.t3.small): approximately $0.45/hour
+- MSK Storage (3 GB minimum): approximately $0.30/hour
+- EC2 Instance (t3.micro or t2.micro): approximately $0.01/hour
 
 To minimize costs, we'll use the smallest available instance types, and we'll provide instructions for cleaning up resources when you're done. Make sure to follow the cleanup instructions at the end of the tutorial to avoid ongoing charges.
 

tuts/078-amazon-elastic-container-registry-gs/amazon-elastic-container-registry-gs.md

@@ -12,7 +12,7 @@ Before you begin this tutorial, make sure you have the following:
 4. Basic familiarity with Docker concepts and commands.
 5. [Sufficient permissions](https://docs.aws.amazon.com/AmazonECR/latest/userguide/security-iam.html) to create and manage ECR resources in your AWS account.
 
-**Cost Information**: The cost of running this tutorial is minimal. Amazon ECR charges $0.10 per GB-month for storage and has data transfer costs that vary by region. For this tutorial, with a ~200MB image stored for a short time, the cost is less than $0.01. AWS Free Tier includes 500MB of storage per month for private repositories, which would cover this tutorial. See [Amazon ECR pricing](https://aws.amazon.com/ecr/pricing/) for more details.
+**Cost Information**: The cost of running this tutorial is minimal. Amazon ECR charges $0.10 per GB-month for storage and has data transfer costs that vary by region. For this tutorial, with a approximately 200MB image stored for a short time, the cost is less than $0.01. AWS Free Tier includes 500MB of storage per month for private repositories, which would cover this tutorial. See [Amazon ECR pricing](https://aws.amazon.com/ecr/pricing/) for more details.
 
 **Time to Complete**: Approximately 20-30 minutes.