docs(api): add DAY_BEFORE_RETRYING and DAY_BEFORE_IMPROVING in sample…

….env

Co-authored-by: Yvonnick Frin <[email protected]>

api/sample.env

@@ -645,9 +645,16 @@ V3_CERTIFICATION_NUMBER_OF_CHALLENGES_PER_COURSE=
 DEFAULT_PROBABILITY_TO_PICK_CHALLENGE=
 
 # ========
-# MAX REACHABLE LEVEL
+# EVALUATION
 # ========
 
+# Days before a user can be asked again on failed skills in a competence evaluation or a campaign participation
+#
+# presence: optional
+# type: Integer
+# default: 4
+DAY_BEFORE_IMPROVING=
+
 # Max reachable level by competence for a user
 #
 # presence: optional
@@ -1125,3 +1132,14 @@ EMAIL_VALIDATION_DEMAND_TEMPORARY_STORAGE_LIFESPAN=3d
 # presence: optional
 # type: json
 # API_DATA_QUERIES='{ "coverageRateByAreas": "abc45-67def-89ghi" }'
+
+# ========
+# PRESCRIPTION
+# ========
+
+# Days before a participant can run the campaign again to try to succeed on failed skills
+#
+# presence: optional
+# type: Integer
+# default: 4
+DAY_BEFORE_RETRYING=