Added instructions to run SPFx doctor

.github/ISSUE_TEMPLATE/bug-report.yml

@@ -10,6 +10,8 @@ body:
 
       Thank you for reporting a bug! Use the sections below to submit a bug ONLY if it's related to samples in this repo. If you have an issue or question about the SharePoint Framework or its documentation, please submit it at https://aka.ms/spdev-issues. 
       
+      Before you submit an issue, please run [spfx doctor](https://pnp.github.io/cli-microsoft365/cmd/spfx/spfx-doctor/) from within the solution folder to diagnose incompatibility issues with your environment.
+
       - Follow our guidance on [How To Create Good Issues](https://github.com/pnp/sp-dev-fx-webparts/wiki/How-to-Create-Good-Issues).
       - All bug reports are welcome - we want to fix them!
       - This repo is maintained by volunteers. Please be courteous and patient. 🙂

samples/react-adaptivecards/README.md

@@ -49,8 +49,8 @@ Version|Date|Comments
 ## Minimal Path to Awesome
 
 * Clone this repository
-* in the command line run:
-  * `cd samples/react-adaptivecards`
+* From your command line, change to the folder for this sample (`react-adaptivecards`)
+* In the command line run:
   * `npm install`
   * `gulp serve`