transition .env -> .Renviron

DESCRIPTION

@@ -15,7 +15,6 @@ BugReports: https://github.com/simonpcouch/pal/issues
 Imports: 
     cli,
     coro,
-    dotenv,
     glue,
     elmer,
     rlang,

R/zzz.R

@@ -1,11 +1,6 @@
 # nocov start
 
 .onLoad <- function(libname, pkgname) {
-  # automatically source .env for API keys on package load
-  if (file.exists(".env")) {
-    dotenv::load_dot_env()
-  }
-
   prompts <- list.files(system.file("prompts", package = "pal"), full.names = TRUE)
   for (prompt in prompts) {
     id <- gsub(".md", "", basename(prompt))

README.Rmd

@@ -32,7 +32,7 @@ You can install pal like so:
 pak::pak("simonpcouch/pal")
 ```
 
-Then, ensure that you have an [`ANTHROPIC_API_KEY`](https://console.anthropic.com/) set in your [`.env`](https://github.com/gaborcsardi/dotenv). If you'd like to use an LLM other than Anthropic's Claude 3.5 Sonnet—like OpenAI's ChatGPT—to power the pal, see `?pal()` to set default metadata on that model. 
+Then, ensure that you have an [`ANTHROPIC_API_KEY`](https://console.anthropic.com/) set in your `.Renviron`---see [usethis::edit_r_environ()](https://usethis.r-lib.org/reference/edit.html) for more information. If you'd like to use an LLM other than Anthropic's Claude 3.5 Sonnet—like OpenAI's ChatGPT—to power the pal, see [`?pal()`](https://simonpcouch.github.io/pal/reference/pal.html) for information on how to set default metadata on that model. 
 
 
 ## Example

README.md

@@ -32,9 +32,12 @@ pak::pak("simonpcouch/pal")
 
 Then, ensure that you have an
 [`ANTHROPIC_API_KEY`](https://console.anthropic.com/) set in your
-[`.env`](https://github.com/gaborcsardi/dotenv). If you’d like to use an
-LLM other than Anthropic’s Claude 3.5 Sonnet—like OpenAI’s ChatGPT—to
-power the pal, see `?pal()` to set default metadata on that model.
+`.Renviron`—see
+[usethis::edit_r_environ()](https://usethis.r-lib.org/reference/edit.html)
+for more information. If you’d like to use an LLM other than Anthropic’s
+Claude 3.5 Sonnet—like OpenAI’s ChatGPT—to power the pal, see
+[`?pal()`](https://simonpcouch.github.io/pal/reference/pal.html) for
+information on how to set default metadata on that model.
 
 ## Example