From 779877953c16f828c7ae081d3e8582b12b8cdfa4 Mon Sep 17 00:00:00 2001
From: Leon van Kammen <leonvankammen@gmail.com>
Date: Thu, 2 Oct 2025 16:56:10 +0200
Subject: [PATCH] doc: update README.md

---
 README.awk |  4 ++--
 README.md  | 10 +++++++++-
 level0.js  | 15 ++++++++++++++-
 3 files changed, 25 insertions(+), 4 deletions(-)

diff --git a/README.awk b/README.awk
index ff30545..ed916ed 100755
--- a/README.awk
+++ b/README.awk
@@ -14,8 +14,8 @@
 #
 
 BEGIN{
-  # printf README.md until '# Component List'
-  system("grep -B9999 '# Functions' README.md")
+  # printf README.md until '# library functions'
+  system("grep -B9999 '# library functions' README.md")
   print ""
 }
 
diff --git a/README.md b/README.md
index fdc492d..a4e8229 100644
--- a/README.md
+++ b/README.md
@@ -8,4 +8,12 @@ See function list below
 
 > this README.md is generated by running `echo "$(./README.awk *.js)" > README.md`
 
-# Function list
+# library functions
+
+
+### import {...} from 'xrf/level0'
+
+| function               | example                                                                 |
+|------------------------|-------------------------------------------------------------------------|
+| fetchSideCarFiles(...) | fetchSideCarFiles("https://f.org/a.glb") // ["https://f.org/a.png",...] |
+ 
diff --git a/level0.js b/level0.js
index e1a124e..d2c108d 100644
--- a/level0.js
+++ b/level0.js
@@ -1,3 +1,11 @@
+/**
+ * ### import {...} from 'xrf/level0'
+ *
+ * | function               | example                                                                 |
+ * |------------------------|-------------------------------------------------------------------------|
+ * | fetchSideCarFiles(...) | fetchSideCarFiles("https://f.org/a.glb") // ["https://f.org/a.png",...] |
+ *  
+ */ 
 import * as http from './scheme/http.js'
 import * as xrf  from './scheme/http.js'
 
@@ -5,7 +13,12 @@ function defaultSchemes(){
   return {http,xrf}
 }
 
-async function pollSideCarFiles(urlString, opts){
+async function sideCarFiles(urlString, opts){
+
+  const sext  = [".png",".ogg",".vtt",".json"]
+}
+
+async function fetchSideCarFiles(urlString, opts){
 
   opts        = {}
   opts.scheme = opts.scheme || defaultSchemes()