fixed Readme anchors

README.md

@@ -100,7 +100,7 @@ Initialize the Terraform configuration files and run
 
 If you have not installed Terraform, follow the [Terraform Getting Started](https://learn.hashicorp.com/terraform/getting-started/install.html).
 
-Add the Twilio variables listed in section [Configuraton Variables](#configuraton-variables) to the `terraform.tfvars` variables file.
+Add the Twilio variables listed in section [Configuration Variables](#configuration-variables) to the `terraform.tfvars` variables file.
 
 Set your Heroku application name in the infrastructure description file `terraform_heroku.tf` 
 
@@ -134,7 +134,7 @@ Initialize your App Engine app with your project and choose its region:
 
 `gcloud app create --project=<your-project-id>`
 
-Add the Twilio variables listed in section [Configuraton Variables](#configuraton-variables) to the `app.yaml` variables file.
+Add the Twilio variables listed in section [Configuration Variables](#configuration-variables) to the `app.yaml` variables file.
 
 Deploy the app on App Engine by running the following command.
 
@@ -160,13 +160,13 @@ In the root directory create a file called '.env', then add the following to top
 
 `require('dotenv').config()`
 
-In order to run the demo you will need to set the environment variables liste in Configuraton Variables](#configuraton-variables)
+In order to run the demo you will need to set the environment variables liste in Configuration Variables](#configuration-variables)
 
 Start the application
 
 `npm start`
 
-Before you can use the demo please open `http://<your_application_name>/setup` and configure the application. The demo overview will be accessible at `http://<your_application_name>`. Please note, if process.env.PORT is not set the applications runs on port 5000.
+Before you can use the demo please open `http://<your-application-name>/setup` and configure the application. The demo overview will be accessible at `http://<your-application-name>`. Please note, if process.env.PORT is not set the applications runs on port 5000.
 
 If you are running the demo locally please remember that Twilio needs a publically-accessible address for webhooks, and the setup process registers these with Twilio. As such, you'll need to run something like ngrok instead of just hitting http://localhost:5000/. As you get new addresses from ngrok you'll need to also rerun the setup process to register the updated address with Twilio.