Update readme.adoc

Author: jleeothon

readme.adoc

@@ -1,5 +1,13 @@
 = pCloud scripts
 
+Collection of scripts to keep my pCloud organised.
+
+These scripts rely on environment variables: `ACCESS_TOKEN`, `FOLDER_ID`.
+
 == intersects.js
 
-Given a (flat) group of folders with pictures, prints folder names in groups such that all folder names in a group have pictures with matching hashes.
+Inside `FOLDER_ID`, given a (flat) group of folders with pictures, prints folder names in groups such that all folder names in a group have pictures with matching hashes.
+
+== dups.js
+
+Inside `FOLDER_ID`, given a (flat) group of folders with pictures, finds pictures with duplicate hashes, and keeps the one with the oldest creation or modification date.