docs formatting

docs/src/index.md

@@ -54,4 +54,4 @@ Modules = [ZarrDatasets]
    * JSON does not distinguish between integers and real numbers. They are all considered as generic numbers. Whole numbers are loaded as `Int64` and real numbers `Float64`. It is not possible to store the number `1.0` as a real number.
    * The order of keys in a JSON document is undefined. It is therefore not possible to have a consistent ordering of the attributes or variables.
    * The JSON standard does not allow the values NaN, +Inf, -Inf which is problematic for attributes ([zarr-python #412](https://github.com/zarr-developers/zarr-python/issues/412),   [zarr-specs #81](https://github.com/zarr-developers/zarr-specs/issues/81)). However, there is a special case for the fill-value to handle NaN, +Inf and -Inf.
-   * All dimensions must be associated to Zarr variables.
+* All dimensions must be associated to Zarr variables.