Deprecate R and Julia packages (#954)

* Move examples

* Remove R and Julia examples from docs

* Remove R and Julia build code

* Remove nox doctest session

* Update HighlightJS bundle

* Docs layout improvements

Author: tcbegley

.Rbuildignore

@@ -26,20 +26,3 @@ docs/templates/generated/**/*.html
 
 # vendored example apps
 docs/examples/vendor
-
-# R build artifacts
-inst
-man
-R/*
-DESCRIPTION
-NAMESPACE
-!R/icons.R
-!R/themes.R
-
-# Julia build artifacts
-deps/
-src/*.jl
-src/jl
-Project.toml
-examples/**/Manifest.toml
-!examples/**/Project.toml

.github/workflows/doctest.yml

@@ -53,33 +53,6 @@ conda-forge channel:
 conda install -c conda-forge dash-bootstrap-components
 ```
 
-### Dash for R
-
-You can now use _dash-bootstrap-components_ with Dash for R! To get started make sure you have the _devtools_ library installed
-
-```r
-install.packages("devtools")
-```
-
-You can then install _dash-bootstrap-components_ from the `r-release` branch of this repository.
-
-```r
-library(devtools)
-install_github('facultyai/dash-bootstrap-components@r-release')
-```
-
-Check out [the docs for more details](https://dash-bootstrap-components.opensource.faculty.ai/docs/quickstart)
-
-### Dash.jl
-
-You can also use _dash-bootstrap-components_ with Dash.jl! Install with
-
-```jl
-pkg> add DashBootstrapComponents
-```
-
-Check out [the docs for more details](https://dash-bootstrap-components.opensource.faculty.ai/docs/quickstart)
-
 ## Quick start
 
 To use _dash-bootstrap-components_ you must do two things: