[docs] Enhance models' docstrings

argos/server/models.py

@@ -1,4 +1,5 @@
 """Database models"""
+
 from datetime import datetime, timedelta
 from typing import List, Literal
 
@@ -87,12 +88,12 @@ class Task(Base):
 
 
 class Result(Base):
-    """There is multiple results per tasks.
+    """There are multiple results per task.
 
-    The results uses the informations returned by the agents.
+    The results store information returned by the agents.
 
-    The status is "Was the agent able to do the check?" while the severity
-    depends on the return value of the check.
+    You can read `status` as  "Was the agent able to do the check?"
+    while the `severity` depends on the return value of the check.
     """
 
     __tablename__ = "results"
@@ -120,14 +121,16 @@ class Result(Base):
 
 
 class ConfigCache(Base):
-    """Contains some informations on the previous config state
+    """Database model containing information on the current state
+    of the configuration.
 
-    Used to quickly determine if we need to update the tasks.
-    There is currently two cached settings:
+    This is used to determine if tasks are to be updated.
+
+    These settings are cached:
     - general_frequency: the content of general.frequency setting, in minutes
                          ex: 5
-    - websites_hash:     the sha256sum of websites setting, to allow a quick
-                         comparison without looping through all websites
+    - websites_hash:     the hash (sha256sum) of websites setting, to allow a quick
+                         comparison without looping through all websites.
                          ex: 8b886e7db7b553fe99f6d5437f31745987e243c77b2109b84cf9a7f8bf7d75b1
     """