Doc : complete doc with att_from_examples

- How to use att_from_examples

Issue #103

vignettes/a-fill-pkg-description.Rmd

@@ -221,13 +221,14 @@ for (i in to_install) {
 
 ## Other possibilities
 
-Of course, you can also use {attachment} out of a package to list all package dependencies of R scripts using `att_from_rscripts()` or Rmd files using `att_from_rmds()`.
+Of course, you can also use {attachment} out of a package to list all package dependencies of R scripts using `att_from_rscripts()`, Rmd files using `att_from_rmds()` or examples from R scripts using `att_from_examples()`.
 
 ```{r, eval=TRUE}
 dummypackage <- system.file("dummypackage", package = "attachment")
 
 att_from_rscripts(path = file.path(dummypackage, "R"))
 att_from_rmds(path = file.path(dummypackage, "vignettes"), inside_rmd = TRUE)
+att_from_examples(dir.r = file.path(dummypackage, "R"))
 ```
 
 

vignettes/b-bookdown-and-scripts.Rmd

@@ -106,6 +106,12 @@ This reads all files in directories of R scripts (default to `R` directory of a
 att_from_rscripts()
 ```
 
+Called in examples from R scripts: 
+
+```{r, eval=FALSE}
+att_from_examples()
+```
+
 ## Get all packages called in your Rmd
 If you have vignette, you may want to list extra libraries, not listed in your "Depends" list. This function applies to any Rmd file, of course.