docs(.env example): added postrgres example

.env-example

@@ -12,7 +12,17 @@ GITEA_USERNAME=username
 GITEA_REPO=logistics_support_tool
 GITEA_TOKEN=ad8eac91a01e3a1885a1dc10
 
+# postgres db 
+DB_HOST=localhost
+DB_PORT=5433
+DB_USER=username
+DB_PASSWORD=password
+DB_NAME=lst # db must be created before you start the app
+
 # dev locs
 DEV_FOLDER=C\drive\loc
 ADMUSER=username
-ADMPASSWORD=password
+ADMPASSWORD=password
+
+# Build number info
+BUILD_NAME=leBlfRaj