fix #4 export proof_header and tweak docs a bit

NAMESPACE

@@ -2,6 +2,7 @@
 
 export(proof_authenticate)
 export(proof_cancel)
+export(proof_header)
 export(proof_start)
 export(proof_status)
 importFrom(httr,DELETE)

R/auth.R

@@ -11,10 +11,8 @@ find_token <- function(token = NULL) {
 
 #' Get header for PROOF API calls
 #'
-#' Utility method to get header for PROOF API calls
-#'
-#' @keywords internal
-#' @param token PROOF API token
+#' @export
+#' @param token (character) PROOF API token. optional
 #' @return A `request` S3 class with the HTTP header that can be passed
 #' to `httr::GET()`, `httr::POST()`, etc.
 proof_header <- function(token = NULL) {
@@ -23,8 +21,6 @@ proof_header <- function(token = NULL) {
 
 #' Authenticate with PROOF API
 #'
-#' Authenticates with HutchNet credentials, returns PROOF API token
-#'
 #' @export
 #' @param username (character) HutchNet username
 #' @param password (character) HutchNet password