FAQ explaining how to access nightly builds (#3061)

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---------

Co-authored-by: Roger Barreto <19890735+RogerBarreto@users.noreply.github.com>

docs/FAQS.md

@@ -0,0 +1,55 @@
+# Frequently Asked Questions
+
+### How do I get access to nightly builds?
+
+Nightly builds of the Semantic Kernel are available [here](https://github.com/orgs/microsoft/packages?repo_name=semantic-kernel).
+
+To download nightly builds follow the following steps:
+
+1. You will need a GitHub account to complete these steps.
+1. Create a GitHub Personal Access Token with the `read:packages` scope using these [instructions](https://docs.github.com/en/authentication/keeping-your-account-and-data-secure/managing-your-personal-access-tokens#creating-a-personal-access-token-classic).
+1. If you account is part of the Microsoft organization then you must authorize the `Microsoft` organization as a single sign-on organization.
+    1. Click the "Configure SSO" next to the Person Access Token you just created and then authorize `Microsoft`.
+1. Use the following command to add the Microsoft GitHub Packages source to your NuGet configuration:
+
+    ```powershell
+    dotnet nuget add source --username GITHUBUSERNAME --password GITHUBPERSONALACCESSTOKEN --store-password-in-clear-text --name GitHubMicrosoft "https://nuget.pkg.github.com/microsoft/index.json"
+    ```
+
+1. Or you can manually create a `NuGet.Config` file.
+
+    ```xml
+    <?xml version="1.0" encoding="utf-8"?>
+    <configuration>
+      <packageSources>
+        <add key="nuget.org" value="https://api.nuget.org/v3/index.json" protocolVersion="3" />
+        <add key="github" value="https://nuget.pkg.github.com/microsoft/index.json" />
+      </packageSources>
+
+      <packageSourceMapping>
+        <packageSource key="nuget.org">
+          <package pattern="*" />
+        </packageSource>
+        <packageSource key="github">
+          <package pattern="*nightly"/>
+        </packageSource>
+      </packageSourceMapping>
+
+      <packageSourceCredentials>
+        <github>
+            <add key="Username" value="<Your GitHub Id>" />
+            <add key="ClearTextPassword" value="<Your Personal Access Token>" />
+          </github>
+      </packageSourceCredentials>
+    </configuration>
+    ```
+
+    * If you place this file in your project folder make sure to have Git (or whatever source control you use) ignore it.
+    * For more information on where to store this file go [here](https://learn.microsoft.com/en-us/nuget/reference/nuget-config-file).
+    * You can also use the following command `he Microsoft GitHub Packages source can be added easier to NuGet:`
+1. You can now add packages from the nightly build to your project.
+    * E.g. use this command `dotnet add package Microsoft.SemanticKernel.Core --version 0.26.231003.1-nightly`
+1. And the latest package release can be referenced in the project like this:
+    * `<PackageReference Include="Microsoft.SemanticKernel" Version="*-*" />`
+
+For more information see: <https://docs.github.com/en/packages/working-with-a-github-packages-registry/working-with-the-nuget-registry>