anchor.diff:  
   For example:
   
  -<pre class="terminal">
  +```json
   {
     "runtimeOptions": {
       "tfm": "netcoreapp2.0",
  
positive.code: 
  For example, the following configuration locks the runtime to 2.1:
  
  <pre class="terminal">
  &lt;PropertyGroup&gt;
    &lt;TargetFramework>netcoreapp2.1&lt;/TargetFramework&gt;
    &lt;RuntimeFrameworkVersion>2.1.*&lt;/RuntimeFrameworkVersion&gt;
  &lt;/PropertyGroup&gt;
  </pre>
  
  <p class="note"><strong>Note:</strong> For source-based apps, specify a minor version of the .NET Runtime.
  Do not specify a patch version because
  
negative.code: <br>
      For example:
  
      ```yml
      ---
      applications:
      - name: sample-aspnetcore-app
        memory: 512M
        env:
          CACHE_NUGET_PACKAGES: false
      ```
  
  1. To alternatively configure the setting to false in the environment variables settings, run the following on the command line:
  
  