backfill README reclamation and reformation

Author: libjohn

README.md

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 # README
 
+<!-- badges: start -->
+<!-- DOI: All versions.  10.5281/zenodo.4999316 -->
+[![DOI](images/doi_badge.svg "DOI")](https://doi.org/10.5281/zenodo.4999316) 
+
+[![ORCID](https://img.shields.io/badge/ORCID-0000--0002--3600--0972-A6CE39?logo=ORCID&logoColor=A6CE39 "ORCID")](https://orcid.org/0000-0002-3600-0972)
+
+[![Creative Commons CC BY-NC](images/CC_BY_NC.svg "CC BY-NC")](https://creativecommons.org/licenses/by-nc-nd/4.0/)
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+[![Launch Rstudio Binder](http://mybinder.org/badge_logo.svg "Launch RStudio Binder/Container")](https://mybinder.org/v2/gh/libjohn/mapping-with-R/master?urlpath=rstudio)
+<!-- badges: end -->
+
 Learning materials for the *Mapping with R* workshop, part of the [Rfun](https://rfun.library.duke.edu/) learning series hosted by the [Data & Visualization Services](https://library.duke.edu/data/) Department.
 
 The objective of this workshop is to introduce practical georeferencing (lat/long plotting) and thematic mapping.  The principle library packages used will be:  leaflet, tidycensus, sf, tmap, and ggmap
@@ -28,8 +39,3 @@ The objective of this workshop is to introduce practical georeferencing (lat/lon
 - [tmap in a nutshell](https://cran.r-project.org/web/packages/tmap/vignettes/tmap-nutshell.html)
 - [viridis color palettes](https://cran.r-project.org/web/packages/viridis/vignettes/intro-to-viridis.html)
 
-Major Revisions:  
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-- 2018, Fall
-- 2019, Spring
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