Update notes for Sep 2

Added the setting to adjust high vegetation density. Players who feel the vegetation is too distracting may find this useful. The setting is located in Settings > High Vegetation. It can be set to one of the following options:

• FULL (default) - all generated high vegetation is displayed, as it was prior to this update
• MEDIUM - high vegetation reduced to 50%
• SPARSE - high vegetation reduced to 10%
• OFF - no high vegetation, except for owl trees