fix env file

apparently, .env requires special syntax...

b2share.env

@@ -1,18 +1,35 @@
 # B2SHARE evironment variables
-export B2ACCESS_CONSUMER_KEY=myb2share         # the username used for registration
-export B2ACCESS_SECRET_KEY=b2a-secretkey       # the secret used for registration (not needed on test server)
 
-export B2SHARE_SECRET_KEY=secretkey            # a secret string used for encrypting user sessions
-export B2SHARE_JSONSCHEMAS_HOST=localhost:5000 # replace <FQDN> with the domain of the B2SHARE server
-export B2SHARE_POSTGRESQL_USER=b2share         # username used by b2share when accessing the postgresql database (default=b2share)
-export B2SHARE_POSTGRESQL_DBNAME=b2sharedb     # name of the postgresql database used by b2share
-export B2SHARE_POSTGRESQL_PASSWORD=dbpasswd    # password used by b2share when accessing the postgresql database
-export B2SHARE_RABBITMQ_USER=b2share           # username used by b2share when accessing RabbitMQ service
-export B2SHARE_RABBITMQ_PASS=rmqpasswd         # password used by b2share when accessing RabbitMQ service
-export B2SHARE_DATADIR='./data-dir'            # path on the host which will be mounted and contain all b2share related data, 
-                                               # including postgresql, elasticsearch, redis, rabbitmq, nginx and b2share itself.
+# the username used for registration
+B2ACCESS_CONSUMER_KEY=myb2share
+# the secret used for registration (not needed on test server)
+B2ACCESS_SECRET_KEY=b2a-secretkey
 
-## optional environment variables
-export USE_STAGING_B2ACCESS=1                  # run in staging (testing) mode (unity install)
-export INIT_DB_AND_INDEX=1                     # when run the first time, initialize the database and indices
-export LOAD_DEMO_COMMUNITIES_AND_RECORDS=1     # when run the first time, load some communities and records for demonstration
+# a secret string used for encrypting user sessions
+B2SHARE_SECRET_KEY=secretkey
+B2SHARE_JSONSCHEMAS_HOST=localhost:5000
+# username used by b2share when accessing the postgresql database (default=b2share)
+B2SHARE_POSTGRESQL_USER=b2share
+# name of the postgresql database used by b2share
+B2SHARE_POSTGRESQL_DBNAME=b2sharedb
+# password used by b2share when accessing the postgresql database
+B2SHARE_POSTGRESQL_PASSWORD=dbpasswd
+# username used by b2share when accessing RabbitMQ service
+B2SHARE_RABBITMQ_USER=b2share
+# password used by b2share when accessing RabbitMQ service path on the host
+# which will be mounted and contain all b2share related data, 
+B2SHARE_RABBITMQ_PASS=rmqpasswd
+# path on the host which will be mounted and contain all b2share related data,
+# including postgresql, elasticsearch, redis, rabbitmq, nginx and b2share
+# itself.
+B2SHARE_DATADIR=./data
+
+
+###### optional environment variables #####
+
+# run in staging (testing) mode (unity install)
+USE_STAGING_B2ACCESS=1
+# when run the first time, initialize the database and indices
+INIT_DB_AND_INDEX=1
+# when run the first time, load some communities and records for demonstration
+LOAD_DEMO_COMMUNITIES_AND_RECORDS=1