section renumber fixes, link fixes

Author: BillWagner

standard/classes.md

@@ -3303,7 +3303,7 @@ ref_property_body
 
 *unsafe_modifier* ([§23.2](unsafe-code.md#232-unsafe-contexts)) is only available in unsafe code ([§23](unsafe-code.md#23-unsafe-code)).
 
-A *property_declaration* may include a set of *attributes* ([§22](attributes.md#22-attributes)) and any one of the permitted kinds of declared accessibility ([§15.3.6](classes.md#1536-access-modifiers)), the `new` ([§15.3.5](classes.md#1535-the-new-modifier)), `static` ([§15.7.2](classes.md#1572-static-and-instance-properties)), `virtual` ([§15.6.4](classes.md#1564-virtual-methods), [§15.7.6](classes.md#1576-virtual-sealed-override-and-abstract-accessors)), `override` ([§15.6.5](classes.md#1565-override-methods), [§15.7.6](classes.md#1576-virtual-sealed-override-and-abstract-accessors)), `sealed` ([§15.6.6](classes.md#1566-sealed-methods)), `abstract` ([§15.6.7](classes.md#1567-abstract-methods), [§15.7.6](classes.md#1576-virtual-sealed-override-and-abstract-accessors)), `extern` ([§15.6.8](classes.md#1468-external-methods)), and `readonly` modifiers. However, it is a compile-time error for the *property_modifier* `readonly` to be used in a *property_declaration* that is not contained directly by a *struct_declaration* (([§15.4.11](structs.md#16411-properties)).
+A *property_declaration* may include a set of *attributes* ([§22](attributes.md#22-attributes)) and any one of the permitted kinds of declared accessibility ([§15.3.6](classes.md#1536-access-modifiers)), the `new` ([§15.3.5](classes.md#1535-the-new-modifier)), `static` ([§15.7.2](classes.md#1572-static-and-instance-properties)), `virtual` ([§15.6.4](classes.md#1564-virtual-methods), [§15.7.6](classes.md#1576-virtual-sealed-override-and-abstract-accessors)), `override` ([§15.6.5](classes.md#1565-override-methods), [§15.7.6](classes.md#1576-virtual-sealed-override-and-abstract-accessors)), `sealed` ([§15.6.6](classes.md#1566-sealed-methods)), `abstract` ([§15.6.7](classes.md#1567-abstract-methods), [§15.7.6](classes.md#1576-virtual-sealed-override-and-abstract-accessors)), `extern` ([§15.6.8](classes.md#1568-external-methods)), and `readonly` modifiers. However, it is a compile-time error for the *property_modifier* `readonly` to be used in a *property_declaration* that is not contained directly by a *struct_declaration* (([§16.4.11](structs.md#16411-automatically-implemented-properties)).
 
 - The first declares a non-ref-valued property. Its value has type *type*. This kind of property may be readable and/or writeable.
 - The second declares a ref-valued property. Its value is a *variable_reference* ([§9.5](variables.md#95-variable-references)), that may be `readonly`, to a variable of type *type*. This kind of property is only readable.
@@ -3395,7 +3395,7 @@ For a ref-valued property the *ref_get_accessor_declaration* consists optional a
 The use of *accessor_modifier*s is governed by the following restrictions:
 
 - An *accessor_modifier* shall not be used in an interface or in an explicit interface member implementation.
-- It is a compile-time error for the *accessor_modifier* `readonly` to be used in a *property_declaration* or *indexer_declaration* that is not contained directly by a *struct_declaration* (§cands-diffs-properties, §cands-diffs-indexers).
+- It is a compile-time error for the *accessor_modifier* `readonly` to be used in a *property_declaration* or *indexer_declaration* that is not contained directly by a *struct_declaration* (§16.4.11, §cands-diffs-indexers).
 - For a property or indexer that has no `override` modifier, an *accessor_modifier* is permitted only if the property or indexer has both a get and set accessor, and then is permitted only on one of those accessors.
 - For a property or indexer that includes an `override` modifier, an accessor shall match the *accessor_modifier*, if any, of the accessor being overridden.
 - The *accessor_modifier* shall declare an accessibility that is strictly more restrictive than the declared accessibility of the property or indexer itself. To be precise:

standard/structs.md

@@ -505,7 +505,7 @@ Automatically implemented properties ([§15.7.4](classes.md#1574-automatically-i
 
 > *Note*: This access restriction means that constructors in structs containing automatically implemented properties often need an explicit constructor initializer where they would not otherwise need one, to satisfy the requirement of all fields being definitely assigned before any function member is invoked or the constructor returns. *end note*
 
-A *property_declaration* ([§14.7.1](classes.md#1471-general)) for an instance property in a *struct_declaration* may contain the *property_modifier* `readonly`. However, a static property shall not contain that modifier.
+A *property_declaration* ([§15.7.1](classes.md#1571-general)) for an instance property in a *struct_declaration* may contain the *property_modifier* `readonly`. However, a static property shall not contain that modifier.
 
 It is a compile-time error to attempt to modify the state of an instance struct variable via a readonly property declared in that struct.
 
@@ -523,7 +523,7 @@ If the `get` accessor has a `readonly` modifier, the `set` shall exist and shall
 
 ### §cands-diffs-methods Methods
 
-A *method_declaration* ([§14.6.1](classes.md#1461-general)) for an instance method in a *struct_declaration* may contain the *method_modifier* `readonly`. However, a static method shall not contain that modifier.
+A *method_declaration* ([§15.6.1](classes.md#1561-general)) for an instance method in a *struct_declaration* may contain the *method_modifier* `readonly`. However, a static method shall not contain that modifier.
 
 It is a compile-time error to attempt to modify the state of an instance struct variable via a readonly method declared in that struct.
 
@@ -535,7 +535,7 @@ All *method_declaration*s of a partial method shall have a `readonly` modifier,
 
 ### §cands-diffs-indexers Indexers
 
-An *indexer_declaration* ([§14.9](classes.md#149-indexers)) for an instance indexer in a *struct_declaration* may contain the *indexer_modifier* `readonly`.
+An *indexer_declaration* ([§15.9](classes.md#159-indexers)) for an instance indexer in a *struct_declaration* may contain the *indexer_modifier* `readonly`.
 
 It is a compile-time error to attempt to modify the state of an instance struct variable via a readonly indexer declared in that struct.
 
@@ -547,7 +547,7 @@ If the `get` accessor has a `readonly` modifier, the `set` shall exist and shall
 
 ### §cands-diffs-events Events
 
-An *event_declaration* ([§14.8.1](classes.md#1481-general)) for an instance, non-field-like event in a *struct_declaration* may contain the *event_modifier* `readonly`. However, a static event shall not contain that modifier.
+An *event_declaration* ([§15.8.1](classes.md#1581-general)) for an instance, non-field-like event in a *struct_declaration* may contain the *event_modifier* `readonly`. However, a static event shall not contain that modifier.
 
 ### 16.4.12 Safe context constraint