Tweak env var examples [skip ci]

netlify.toml

@@ -7,5 +7,6 @@
   incoming-hooks = ["Morph scrape completed"]
   
 [template.environment]
+  # eg https://api.morph.io/adrianshort/inlink-scraper/data.json
+  MORPH_API_URL = "Your public inlink-scraper Morph API URL (ends in data.json)"
   MORPH_API_KEY = "Your secret Morph API key"
-  MORPH_API_URL = "https://api.morph.io/adrianshort/inlink-scraper/data.json"