This book aims to teach the following:

Getting started with your own R Markdown document
Improve workflow:
    With rstudio projects
    Using keyboard shortcuts
Export your R Markdown document to PDF, HTML, and Microsoft Word
Better manage figures and tables
    Reference figures and tables in text so that they dynamically update
    Create captions for figures and tables
    Change the size and type of figures
    Save the figures to disk when creating an rmarkdown document
Work with equations
    inline and display
    caption equations
    reference equations
Manage bibliographies
    Cite articles in text
    generate bibliographies
    Change bibliography styles
Debug and handle common errors with rmarkdown

Next steps in working with rmarkdown - how to extend yourself to other rmarkdown formats