installation: fix syntax error in invenio.cfg

invenio.cfg

@@ -546,7 +546,7 @@ METRICS_UPTIME_ROBOT_METRIC_IDS = {}
 METRICS_UPTIME_ROBOT_URL = "https://api.uptimerobot.com/v2/getMonitors"
 METRICS_UPTIME_ROBOT_API_KEY = None
 
-# OpenAIRE configs 
+# OpenAIRE configs
 OPENAIRE_API_URL = "http://dev.openaire.research-infrastructures.eu/is/mvc/api/results"
 """OpenAIRE API endpoint."""
 
@@ -573,10 +573,10 @@ COMMUNITIES_ADMINISTRATION_DISABLED = False
 """Enable communities administration."""
 
 MAIL_DEFAULT_SENDER = "Zenodo <[email protected]>"
-"""Default e-mail address sender."
+"""Default e-mail address sender."""
 
 REST_ENABLE_CORS = True
 """Enable CORS validation."""
 
 REST_CSRF_ENABLED = True
-"""Enable CSRF."""
+"""Enable CSRF."""