Correct typo in documentation

corrected homonym error.
Add @api stable annotations to ol.View
Add @api stable annotations to olx.ViewOptions
Better docs for fitExtent and calculateExtent
Add @api stable annotations to ol.proj
Mark ol.TransformFunction as stable
Add @api stable annotations to ol.tilegrid.TileGrid
Add @api stable annotations to olx.tilegrid.TileGridOptions
Add @api stable annotations to ol.tilegrid.WMTS
Add @api stable annotations to olx.tilegrid.WMTSOptions
Add @api stable to ol.events.ConditionType
Add @api stable to ol.events.condition built-ins
Add @api stable to ol.MapBrowserEvent
Add @api stable to ol.MapEvent
Add @api stable annotations for GeoJSON format
Mark all WMTS functions/options as experimental
Add @extends annotations to generated externs
Do not extend goog.* types
Walk up the inheritance chain to an exportable constructor
Add @api stable annotations for GML format