ARROW-13616: [R] Cheat Sheet Structure

r/.Rbuildignore

@@ -27,3 +27,4 @@ clang_format.sh
 STYLE.md
 ^.lintr
 ^.styler_excludes.R
+^cheatsheet$

r/README.md

@@ -310,6 +310,8 @@ Other applications of `arrow` are described in the following vignettes:
 -   `vignette("arrow", package = "arrow")`: access and manipulate Arrow
     objects through low-level bindings to the C++ library
 
+The Arrow for R [cheatsheet](https://github.com/apache/arrow/blob/master/r/cheatsheet/arrow.pdf) and [Cookbook](https://arrow.apache.org/cookbook/r/index.html) are additional resources for getting started with `arrow`.
+
 ## Getting help
 
 If you encounter a bug, please file an issue with a minimal reproducible

r/cheatsheet/README.md

@@ -0,0 +1,6 @@
+### arrow-cheatsheet
+
+* The `powerpoint/arrow-cheatsheet.pptx` file was built in and exported from Google Slides
+* The arrow cheatsheet leverages some design elements from the official [RStudio cheatsheet template](https://github.com/rstudio/cheatsheets) ([CC-BY-4.0](https://github.com/rstudio/cheatsheets/blob/main/LICENSE))
+* The official Apache Arrow hex sticker is sourced from <https://arrow.apache.org/visual_identity/>
+* To suggest changes or update the cheatsheet, please download and edit the `arrow-cheatsheet.pptx` file, and provide the revised `.pptx` and rendered PDF via a Pull Request to the repository (see [Pull request and review guidelines for help](https://arrow.apache.org/docs/developers/contributing.html))