fix formatting

Author: RexJaeschke

standard/classes.md

@@ -5143,6 +5143,7 @@ A type having an instance indexer taking a single argument of type `System.Index
 #### §indexable-sequence-impl-support-for-index Implicit Index support
 
 An implementation shall behave as if it provides an instance indexer member with a single parameter of type `System.Index` for any type that meets the following criteria:
+
 - The type is countable [§14.7.1](classes.md#1471-general).
 - The type has an accessible instance indexer taking an argument of type `int` as its only argument, or as its first argument with the remaining arguments being optional.
 - The type does not have an accessible instance indexer taking a `System.Index` as its only argument, or as its first argument with the remaining arguments being optional.
@@ -5191,10 +5192,11 @@ A type having an instance indexer taking a single argument of type `System.Range
 #### §indexable-sequence-impl-support-for-range Implicit Range support
 
 An implementation shall behave as if it provides an instance indexer member with a single parameter of type `System.Range` for any type that meets the following criteria:
+
 - The type is countable [§14.7.1](classes.md#1471-general).
 - The type has an accessible instance method named `Slice` taking two arguments of type `int` as the only arguments. For type `string`, the method `Substring` is used instead of `Slice`.
-   > *Note*: As specified in [§11.7.10.2](expressions.md#117102-array-access), for array access, the method `System.Runtime.CompilerServices.RuntimeHelpers.GetSubArray` is used instead of `Slice`. *end note*
- - The type does not have an accessible instance indexer taking a `System.Range` as its only argument, or as its first argument with the remaining arguments being optional.
+  > *Note*: As specified in [§11.7.10.2](expressions.md#117102-array-access), for array access, the method `System.Runtime.CompilerServices.RuntimeHelpers.GetSubArray` is used instead of `Slice`. *end note*
+- The type does not have an accessible instance indexer taking a `System.Range` as its only argument, or as its first argument with the remaining arguments being optional.
 
 The provided instance indexer shall have the same accessibility and return type, including `ref` if present, as `Slice`.