fix broken links in docs

Author: waylan

docs/change_log/release-2.4.md

@@ -50,7 +50,7 @@ What's New in Python-Markdown 2.4
   Blocks] section for details. Thanks to [ryneeverett] for implementing this
   feature.
 
-[Markdown Inside HTML Blocks]: ../extensions/extra.md#nested-markdown-inside-html-blocks
+[Markdown Inside HTML Blocks]: ../extensions/md_in_html.md
 [ryneeverett]: https://github.com/ryneeverett
 
 * The code blocks now support emphasizing some of the code lines. To use this

docs/change_log/release-2.5.md

@@ -103,7 +103,7 @@ Backwards-incompatible Changes
   a string to the extension name will be deprecated in Python-Markdown
   version 2.6 and will raise a **`PendingDeprecationWarning`** in 2.5. The
   [`extension_configs`](../reference.md#extension_configs) keyword should
-  be used instead. See the [documentation](../reference.md#extension-configs)
+  be used instead. See the [documentation](../reference.md#extension_configs)
   for a full explanation of the current behavior.
 
 What's New in Python-Markdown 2.5

docs/change_log/release-2.6.md

@@ -137,7 +137,7 @@ The previously documented method of appending the extension configuration
 options as a string to the extension name is deprecated and will raise a
 **`DeprecationWarning`** in version 2.6 and an error in 2.7. The
 [`extension_configs`](../reference.md#extension_configs) keyword should be used
-instead. See the [documentation](../reference.md#extension-configs) for a full
+instead. See the [documentation](../reference.md#extension_configs) for a full
 explanation of the current behavior.
 
 ### HeaderId Extension Pending Deprecation
@@ -214,7 +214,7 @@ Note the call to `super` to get the benefits of configuration handling from the
 parent class. See the [documentation][config] for more information.
 
 [config]: ../extensions/api.md#configsettings
-[mext]: ../extensions/api.md#makeextension
+[mext]: ../extensions/api.md#dot_notation
 
 ## What's New in Python-Markdown 2.6
 

docs/extensions/api.md

@@ -801,7 +801,7 @@ When `markdown.Markdown` is passed the "name" of your extension as a dot notatio
 (for example `path.to.module`), it will import the module and call the `makeExtension` function to initiate your
 extension.
 
-## Registries
+## Registries { #registry }
 
 The `markdown.util.Registry` class is a priority sorted registry which Markdown uses internally to determine the
 processing order of its various processors and patterns.
@@ -884,3 +884,4 @@ assert someitem in registry
 [setuptools]: https://packaging.python.org/key_projects/#setuptools
 [Entry points]: https://setuptools.readthedocs.io/en/latest/setuptools.html#dynamic-discovery-of-services-and-plugins
 [Packaging and Distributing Projects]: https://packaging.python.org/tutorials/distributing-packages/
+[Inline Patterns]: #inline-patterns

docs/extensions/md_in_html.md

@@ -13,15 +13,15 @@ enabled, the content of a raw HTML block-level element can be parsed as Markdown
 on the opening tag. The `markdown` attribute will be stripped from the output, while all other attributes will be
 preserved.
 
-The `markdown` attribute can be assigned one of three values: [`"1"`](#1), [`"block"`](#block), or [`"span"`](#span).
+The `markdown` attribute can be assigned one of three values: [`"1"`](#markdown1), [`"block"`](#block), or [`"span"`](#span).
 
 !!! note
 
     The expressions "block-level" and "span-level" as used in this document refer to an element's designation
     according to the HTML specification. Whereas the `"span"` and `"block"` values assigned to the `markdown`
     attribute refer to the Markdown parser's behavior.
 
-### `markdown="1"` { #1 }
+### `markdown="1"` { #markdown1 }
 
 When the `markdown` attribute is set to `"1"`, then the parser will use the default behavior for that specific tag.