rmarkdown -> quarto vignettes

fix:

Found the following (possibly) invalid URLs:
  URL: http://localhost:3838/app
    From: inst/doc/making-a-dockitect-dockerfile-into-a-running-container.html
    Status: Error
    Message: Could not connect to server [localhost]:
      Failed to connect to localhost port 3838 after 2253 ms: Could not connect to server
  URL: https://www.rocker-project.org/ (moved to https://rocker-project.org/)
    From: inst/doc/making-a-dockitect-dockerfile-into-a-running-container.html
    Status: 301
    Message: Moved Permanently
For content that is 'Moved Permanently', please change http to https,
add trailing slashes, or replace the old by the new URL.

Author: coatless

.Rbuildignore

@@ -9,3 +9,5 @@
 ^\.Rproj\.user$
 ^Dockerfile$
 ^\.dockerignore$
+^vignettes/\.quarto$
+^vignettes/*_files$

.gitignore

@@ -7,3 +7,4 @@ docs
 inst/doc
 .dockerignore
 Dockerfile
+**/.quarto/

DESCRIPTION

@@ -22,10 +22,10 @@ Imports:
     jsonlite
 Suggests:
     knitr,
-    rmarkdown,
+    quarto,
     testthat (>= 3.0.0)
 Encoding: UTF-8
 Roxygen: list(markdown = TRUE)
 RoxygenNote: 7.3.2
+VignetteBuilder: quarto
 Config/testthat/edition: 3
-VignetteBuilder: knitr

vignettes/.gitignore

@@ -1,2 +1,3 @@
 *.html
 *.R
+*_files

vignettes/getting-started-with-dockitect.Rmd renamed to vignettes/getting-started-with-dockitect.qmd

@@ -1,17 +1,17 @@
 ---
 title: "Getting Started with dockitect"
-output: rmarkdown::html_vignette
 vignette: >
   %\VignetteIndexEntry{Getting Started with dockitect}
-  %\VignetteEngine{knitr::rmarkdown}
+  %\VignetteEngine{quarto::html}
   %\VignetteEncoding{UTF-8}
+knitr:
+  opts_chunk:
+    collapse: true
+    comment: '#>'
 ---
 
-```{r, include = FALSE}
-knitr::opts_chunk$set(
-  collapse = TRUE,
-  comment = "#>"
-)
+```{r}
+#| include: false
 
 Sys.setenv(R_USER_CACHE_DIR = tempfile())
 ```

vignettes/making-a-dockitect-dockerfile-into-a-running-container.Rmd renamed to vignettes/making-a-dockitect-dockerfile-into-a-running-container.qmd

@@ -1,17 +1,17 @@
 ---
 title: "Making a dockitect Dockerfile into a Running Container"
-output: rmarkdown::html_vignette
 vignette: >
   %\VignetteIndexEntry{Making a dockitect Dockerfile into a Running Container}
-  %\VignetteEngine{knitr::rmarkdown}
+  %\VignetteEngine{quarto::html}
   %\VignetteEncoding{UTF-8}
+knitr:
+  opts_chunk:
+    collapse: true
+    comment: '#>'
 ---
 
-```{r, include = FALSE}
-knitr::opts_chunk$set(
-  collapse = TRUE,
-  comment = "#>"
-)
+```{r}
+#| include: false
 
 Sys.setenv(R_USER_CACHE_DIR = tempfile())
 ```
@@ -143,7 +143,12 @@ docker build --platform linux/amd64 -t my-shiny-app .
 docker run -p 3838:3838 my-shiny-app
 ```
 
-Now you can access your Shiny app by navigating to <http://localhost:3838/app> in your web browser.
+Now, you can access your Shiny app by navigating 
+in your web browser to: 
+
+```default
+http://localhost:3838/app
+```
 
 ### Running an R Script with Volume Mounting
 
@@ -239,5 +244,5 @@ vignette covered the basics of working with Docker after generating your
 `Dockerfile` via `{dockitect}`.
 
 For more information, consult the [Docker documentation](https://docs.docker.com/)
-or the [Rocker project](https://www.rocker-project.org/) which provides pre-built
+or the [Rocker project](https://rocker-project.org/) which provides pre-built
 Docker images for R.