gh-35958: note about docker in README.md
    
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This is adding a short paragraph about using docker, and a link.

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URL: #35958
Reported by: Frédéric Chapoton
Reviewer(s): Kwankyu Lee, Matthias Köppe

Author: Release Manager

README.md

@@ -65,7 +65,7 @@ your Windows. Make sure you allocate WSL sufficient RAM; 5GB is known to work, w
 Then all instructions for installation in Linux apply.
 
 As an alternative, you can also run Linux on Windows using Docker (see
-above) or other virtualization solutions.
+below) or other virtualization solutions.
 
 [macOS] Preparing the Platform
 ------------------------------
@@ -416,6 +416,18 @@ You need to install `sage_conf`, a wheelhouse of various python packages. You ca
 
 **NOTE:** You can find `sage` and `sagemath` pip packages but with these packages, you will encounter `ModuleNotFoundError`.
 
+SageMath Docker images
+----------------------
+
+[![Docker Status](http://dockeri.co/image/sagemath/sagemath)](https://hub.docker.com/r/sagemath/sagemath)
+
+SageMath is available on Docker Hub and can be downloaded by:
+``` bash
+docker pull sagemath/sagemath
+```
+
+Currently, only stable versions are kept up to date.
+
 Troubleshooting
 ---------------