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@@ -2,6 +2,26 @@
 
 A script to search in HMAP (http://hmap.fr/) set of music scores. Basically, a PHP script to search in a CSV.
 
+## Document access token
+
+Tokens are used to regulate access to scores. Nobody can access to scores without it, and it has an expiration date.
+
+If the used link to the scores is used for malicious purpose, it can be quickly deactivated to stop access from the leaked link. Then a new one can be created to provide a new access to target users.
+
+To create a new token, create a file in repository `private/tokens/` in the format `YYYYMMDD-KEY.txt`, by replacing `YYYYMMDD` by a given date (in format year-month-day) which is the limit of activation of the token (passed this date, the token is disabled) and `KEY` by any alphanumeric string of characters (preferably randomly generated).
+The content of this file is ignored.
+
+To access to the website with the token, the URL shall be: *www.mywebsite.com/?token=KEY* with *KEY* the actual `KEY` used at the end of the created file name.
+
+
+## Document storage
+
+Scores are stored in subdirectories of `private/docs`.
+
+To add a new set of music scores here, create a new directory with the code of the score in csv (ex: "F058" for "1ere Symphonie en Ut Majeur" described in `Archives_HMAP_140126.csv`.
+
+Then in that directory, add all scores.
+
 ## Run in docker
 
 This is for development purposes: