docs: add Terraform certification notes and tasks

terraform/005/main.tf

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+# terraform {
+#   required_providers {
+#     aws = {
+#       source  = "hashicorp/aws"
+#       version = "~> 6.0"
+#     }
+#   }
+# }
+
+# provider "aws" {
+#   region = "us-east-1"
+# }
+
+resource "aws_vpc" "devops_vpc" {
+  cidr_block                       = "10.0.0.0/16"
+  assign_generated_ipv6_cidr_block = true
+
+  tags = {
+    Name = "devops-vpc"
+  }
+}

terraform/005/task-5.md

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+## Task 5
+
+The Nautilus DevOps team is strategically planning the migration of a portion of their infrastructure to the AWS cloud. Acknowledging the magnitude of this endeavor, they have chosen to tackle the migration incrementally rather than as a single, massive transition. Their approach involves creating Virtual Private Clouds (VPCs) as the initial step, as they will be provisioning various services under different VPCs.
+
+For this task, create a VPC named devops-vpc in the us-east-1 region with the Amazon-provided IPv6 CIDR block using terraform.
+
+The Terraform working directory is /home/bob/terraform. Create the main.tf file (do not create a different .tf file) to accomplish this task.
+
+Note: Right-click under the EXPLORER section in VS Code and select Open in Integrated Terminal to launch the terminal.