docs: Update file paths and fix formatting in README and Tutorial

README.md

@@ -1,4 +1,5 @@
 # *NBIA Toolkit*
+## A python package that provides programmatic access to query and download images from the National Biomedical Imaging Archive (**NBIA**) and The Cancer Imaging Archive (**TCIA**) databases.
 [![PyTests](https://github.com/jjjermiah/nbia-toolkit/actions/workflows/main.yml/badge.svg)](https://github.com/jjjermiah/nbia-toolkit/actions/workflows/main.yml)
 [![Documentation Status](https://readthedocs.org/projects/nbia-toolkit/badge/?version=latest)](https://nbia-toolkit.readthedocs.io/en/latest/?badge=latest)
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@@ -14,7 +15,7 @@
 
 ![GitHub milestone details](https://img.shields.io/github/milestones/progress-percent/jjjermiah/nbia-toolkit/1?style=flat-square&label=1.0.0%20Stable%20Release%20Milestone&link=https%3A%2F%2Fgithub.com%2Fjjjermiah%2Fnbia-toolkit%2Fmilestone%2F1)![GitHub milestone details](https://img.shields.io/github/milestones/progress/jjjermiah/nbia-toolkit/1?style=flat-square&label=%20&link=https%3A%2F%2Fgithub.com%2Fjjjermiah%2Fnbia-toolkit%2Fmilestone%2F1)
 
-#### A python package that provides programmatic access to query and download images from the National Biomedical Imaging Archive (**NBIA**) and The Cancer Imaging Archive (**TCIA**) databases.
+
 
 ## Features
 > [!TIP]