Change DockerHub repository links in README

Updated DockerHub badge and pull command to reflect new repository.

Author: Ulthran

README.md

@@ -3,7 +3,7 @@
 [![Tests](https://github.com/PennChopMicrobiomeProgram/dnabc/actions/workflows/pr.yml/badge.svg)](https://github.com/PennChopMicrobiomeProgram/dnabc/actions/workflows/pr.yml)
 [![codecov](https://codecov.io/gh/PennChopMicrobiomeProgram/dnabc/graph/badge.svg?token=LB4WAS4S61)](https://codecov.io/gh/PennChopMicrobiomeProgram/dnabc)
 [![Codacy Badge](https://app.codacy.com/project/badge/Grade/ead94847cf8540108fa831be4664db0b)](https://app.codacy.com/gh/PennChopMicrobiomeProgram/dnabc/dashboard?utm_source=gh&utm_medium=referral&utm_content=&utm_campaign=Badge_grade)
-[![DockerHub](https://img.shields.io/docker/pulls/ctbushman/dnabc)](https://hub.docker.com/repository/docker/ctbushman/dnabc/)
+[![DockerHub](https://img.shields.io/docker/pulls/chopmicrobiome/dnabc)](https://hub.docker.com/repository/docker/chopmicrobiome/dnabc/)
 
 Identify DNA barcodes in FASTQ data files and write demultiplexed data.
 
@@ -21,7 +21,7 @@ dnabc -h
 ### DockerHub
 
 ```bash
-docker pull ctbushman/dnabc:latest
+docker pull chopmicrobiome/dnabc:latest
 docker run --rm --name dnabc dnabc dnabc -h
 ```