Added videos links and fixed broken link (#438)

* Developer Tooling docs and adding links for Bindings and to other HowTo topics to concepts specs.

* Adding links to videos and fixed broken link

Co-authored-by: Yaron Schneider <yaronsc@microsoft.com>

concepts/secrets/README.md

@@ -17,6 +17,7 @@ For more information read [Referencing Secret Stores in Components](./component-
 ## Using secrets in your application
 
 Application code can call the secrets building block API to retrieve secrets from Dapr supported secret stores that can be used in your code.
+Watch this [video](https://www.youtube.com/watch?v=OtbYCBt9C34&t=1818) for an example of how the secrets API can be used in your application.
 
 For example, the diagram below shows an application requesting the secret called "mysecret" from a secret store called "vault" from a configured cloud secret store.
 

howto/README.md

@@ -11,7 +11,7 @@ Here you'll find a list of How To guides that walk you through accomplishing spe
 - [Observerability](#observerability)
 - [Security](#security)
 - [Components](#components)
-- [Developer Tooling](#developer-experience)
+- [Developer tooling](#developer-tooling)
 - [Infrastructure integration](#Infrastructure-integration)
 
 ## Service invocation
@@ -62,9 +62,8 @@ For Actors How Tos see the SDK documentation
 
 * [Diagnose your services with distributed tracing](./diagnose-with-tracing)
 
-
 ## Security
-### Mutual Transport Layer Security (TLS)
+### Mutual Transport Layer Security (mTLS)
 
 * [Setup and configure mutual TLS between Dapr instances](./configure-mtls)
 
@@ -77,10 +76,10 @@ For Actors How Tos see the SDK documentation
 
 * [Limit components for one or more applications using scopes](./components-scopes)
 
-## Developer experience
+## Developer tooling
 ### Using Visual Studio Code
 
-* [Using Remote Containers for application development](./vscode-remote-containers-daprd)
+* [Using Remote Containers for application development](./vscode-remote-containers)
 * [Developing and debugging  Dapr applications](./vscode-debugging-daprd)
 
 * [Setup development environment for Dapr runtime development ](https://github.com/dapr/dapr/blob/master/docs/development/setup-dapr-development-using-vscode.md)

howto/vscode-debugging-daprd/README.md

@@ -3,7 +3,7 @@
 ## Visual Studio Code Dapr extension
 It is recommended to use the *preview* of the [Dapr Visual Studio Code extension](https://marketplace.visualstudio.com/items?itemName=ms-azuretools.vscode-dapr) available in the Visual Studio marketplace for local development and debugging of your Dapr applications.
 
-Watch this [20 min video](https://www.youtube.com/watch?v=OtbYCBt9C34&t=85) on how to use the Dapr VS Code extension.
+Watch this [video](https://www.youtube.com/watch?v=OtbYCBt9C34&t=85) on how to use the Dapr VS Code extension.
 
 ### Debugging multiple Dapr applications at the same time
 Using the VS Code extension you can debug multiple Dapr applications at the same time with [Multi-target debugging](https://code.visualstudio.com/docs/editor/debugging#_multitarget-debugging)

howto/vscode-remote-containers/README.md

@@ -6,7 +6,9 @@ The Visual Studio Code Remote - Containers extension lets you use a Docker conta
 
 Dapr has pre-built Docker remote containers for each of the language SDKs. You can pick the one of your choice for a ready made environment. Note these pre-built containers automatically update to the latest Dapr release. 
 
-These are the steps 
+Watch this [video](https://www.youtube.com/watch?v=D2dO4aGpHcg&t=120) on how to use the Dapr VS Code Remote Containers with your application.
+
+These are the steps to use Dapr Remote Containers 
 1. Open your application workspace in VS Code
 2. In the command command palette select the  `Remote-Containers: Add Development Container Configuration Files...` command
 3. Type `dapr` to filter the list to available Dapr remote containers and choose the language container that matches your application. See screen shot below.
@@ -14,4 +16,3 @@ These are the steps
 
 <img src="../../images/vscode_remote_containers.png" width=800>
 
-Watch this [video](https://www.youtube.com/watch?v=D2dO4aGpHcg&t=120) on how to use the Dapr VS Code Remote Containers with your application.