Added comments

src/database/add.py

@@ -13,6 +13,7 @@ def add_account(
     enc_login: bytes,
     enc_pass: bytes,
 ) -> bool:
+    """Adds account to db. Returns true, if on success"""
     account = models.Account(
         user_id=user_id, name=name, salt=salt, enc_login=enc_login, enc_pass=enc_pass
     )
@@ -27,6 +28,7 @@ def add_account(
 
 
 def add_master_pass(engine: Engine, user_id: int, salt: bytes, passwd: bytes) -> bool:
+    """Adds master password to db. Returns true, if on success"""
     master_pass = models.MasterPass(user_id=user_id, salt=salt, passwd=passwd)
     try:
         with sqlmodel.Session(engine) as session: