Add prerequisites section for Anaconda pipeline setup

Author: juliakm

docs/pipelines/ecosystems/anaconda.md

@@ -14,6 +14,15 @@ author: JuliaKM
 
 Set up and use Anaconda with Python in your pipeline. Anaconda is a Python distribution for data science and machine learning.  
 
+## Prerequisites
+
+Python is preinstalled on [Microsoft-hosted agents](../agents/hosted.md) for Linux, macOS, and Windows. You don't have to set up anything more to build Python projects. To see which Python versions are preinstalled, see [Software](../agents/hosted.md#software).
+
+| **Product** | **Requirements**   |
+|---|---|
+| **Azure DevOps** | - An [Azure DevOps project](../../organizations/projects/create-project.md).<br>   - An ability to run pipelines on Microsoft-hosted agents. You can either purchase a [parallel job](../licensing/concurrent-jobs.md) or you can request a free tier.  <br> - Basic knowledge of YAML and Azure Pipelines. For more information, see [Create your first pipeline](../create-first-pipeline.md). <br> - **Permissions:**<br>      &nbsp;&nbsp;&nbsp;&nbsp; - To create a pipeline: you must be in the **Contributors** group and the group needs to have *Create build pipeline* permission set to Allow. Members of the [Project Administrators group](../../organizations/security/permissions.md) can manage pipelines. <br> &nbsp;&nbsp;&nbsp;&nbsp;- To create service connections: You must have the *Administrator* or *Creator* role for [service connections](../library/add-resource-protection.md).
+| **GitHub** | - A [GitHub](https://github.com) account. <br>   - A [GitHub service connection](../library/service-endpoints.md) to authorize Azure Pipelines.|
+
 ## Get started
 
 Follow these instructions to set up a pipeline for a sample Python app with Anaconda environment.