Fix casing of Dockerfile, formatting

Author: Chuxel

containers/azure-functions-pwsh-6/.devcontainer/dockerfile renamed to containers/azure-functions-pwsh-6/.devcontainer/Dockerfile

@@ -1,7 +1,8 @@
 {
-    "name": "Azure Functions & pwsh (.NET Core 2.2)",
+    "name": "Azure Functions & PowerShell 6",
     "dockerFile": "Dockerfile",
-    "appPort": 7071,
+	"appPort": 7071,
+	
     // Use 'settings' to set *default* container specific settings.json values on container create. 
     // You can edit these settings after create using File > Preferences > Settings > Remote.
     "settings": {

containers/azure-functions-pwsh-6/.devcontainer/devcontainer.json

@@ -1,8 +1,8 @@
-# Azure Functions & Pwsh (.NET Core Latest)
+# Azure Functions & PowerShell 6
 
 ## Summary
 
-*Develop Azure Functions in PowerShell. Includes NET Core (Latest), the Azure Functions SDK, and related extensions and dependencies.*
+*Develop Azure Functions in PowerShell. Includes .NET Core 2.2, the Azure Functions SDK, and related extensions and dependencies.*
 
 | Metadata | Value |  
 |----------|-------|