fixed documentation links

docs/pages/pmd/projectdocs/credits.md

@@ -428,7 +428,7 @@ author: Tom Copeland <tom@infoether.org>
 *   Mat Booth - #1109 Patch to build with Javacc 5.0
 *   Stuart Turton - for PLSQL support. See also [pldoc](http://pldoc.sourceforge.net/)
 *   Andrey Utis - for adding Apache Velocity as a new language and writing up a
-    [howto for adding new languages](../customizing/new-language.html).
+    [howto for adding new languages](pmd_devdocs_major_adding_new_language.html).
 *   Alan Hohn - for adding Standard and modified cyclomatic complexity rules
 *   Jan van Nunen - for adding CPD support for Matlab, Objective-C, Python, Scala and various bug fixes
 *   Juan Martín Sotuyo Dodero - for many bugfixes/pull requests improving Java grammar and performance

docs/pages/pmd/userdocs/best_practices.md

@@ -25,7 +25,7 @@ Use the rules you like [via a custom ruleset](pmd_userdocs_making_rulesets.html)
 
 ## PMD rules are not set in stone
 
-Generally, pick the ones you like, and ignore or [suppress](pmd_userdocs_suppressing.html)
+Generally, pick the ones you like, and ignore or [suppress](pmd_userdocs_suppressing_warnings.html)
 the warnings you don't like. It's just a tool.
 
 ## PMD IDE plugins are nice

docs/pages/pmd/userdocs/cli_reference.md

@@ -166,7 +166,7 @@ This behavior has been introduced to ease PMD integration into scripts or hooks,
 
 *   [apex](pmd_rules_apex.html) (Salesforce Apex)
 *   [java](pmd_rules_java.html)
-*   [ecmascript](pmd_rules_javascript.html) (JavaScript)
+*   [ecmascript](pmd_rules_ecmascript.html) (JavaScript)
 *   [jsp](pmd_rules_jsp.html)
 *   [plsql](pmd_rules_plsql.html)
 *   [vf](pmd_rules_vf.html) (Salesforce VisualForce)

docs/pages/pmd/userdocs/cpd.md

@@ -17,7 +17,7 @@ It can also be run with Maven by using the `cpd-check` goal on the [Maven PMD Pl
 
 
 Your own language is missing?
-See how to add it [here](/pmd_devdocs_adding_new_cpd_language.html).
+See how to add it [here](/pmd_devdocs_major_adding_new_cpd_language.html).
 
 
 ### Why should you care about duplicates?

docs/pages/pmd/userdocs/extending/rule_guidelines.md

@@ -50,7 +50,7 @@ Rules which use the RuleChain to visit the AST are faster than rules which perfo
 
 ## Adding test cases
 
-See [Test Framework](pmd_devdocs_testing.html) for the general documentation
+See [Testing your rules](pmd_userdocs_extending_testing.html) for the general documentation
 
 ### … for a rule I want to submit (in a patch)
 
@@ -59,7 +59,7 @@ the category and add the XML test data in the correct xml subpackage.
 
 ### … for something too specific, that I won’t be able to submit
 
-See [Using the test framework externally](pmd_devdocs_testing.html#using-the-test-framework-externally)
+See [Using the test framework externally](pmd_userdocs_extending_testing.html#using-the-test-framework-externally)
 
 ## Code quality
 

docs/pages/pmd/userdocs/extending/writing_pmd_rules.md

@@ -248,7 +248,7 @@ Note that access modifiers are held as attributes, so, for example,
 
 `//FieldDeclaration[@Private='true']`
 
-finds all private fields. You can see the code that determines all the attributes [here](pmd-core/xref/net/sourceforge/pmd/lang/ast/xpath/AttributeAxisIterator.html)
+finds all private fields. You can see the code that determines all the attributes [here](https://github.com/pmd/pmd/blob/master/pmd-core/src/main/java/net/sourceforge/pmd/lang/ast/xpath/AttributeAxisIterator.java)
 
 More information about writing XPath rules is [available here](pmd_userdocs_extending_writing_xpath_rules.html).
 

docs/pages/pmd/userdocs/extending/writing_xpath_rules.md

@@ -16,7 +16,7 @@ Writing PMD rules with XPath can be a bit easier than writing rules with Java co
 
 ## Introduction
 
-PMD provides a very handy method for writing rules by writing an XPath query. When the XPath query finds a match, a violation is added to the report. This document focuses on XPath rules. You can go [here](howtowritearule.html) for more information about writing a rule.
+PMD provides a very handy method for writing rules by writing an XPath query. When the XPath query finds a match, a violation is added to the report. This document focuses on XPath rules. You can go [here](pmd_userdocs_extending_writing_pmd_rules.html) for more information about writing a rule.
 
 ## What is the Abstract Syntax Tree (AST)?
 

docs/pages/pmd/userdocs/installation.md

@@ -105,7 +105,7 @@ Additionally, the following options, are specified most of the time even though
 
 {% include note.html
    content="CPD supports Java, JSP, C, C++, C#, Fortran and PHP source code, among other languages.
-            For the full list, see [Supported Languages](pmd_userdocs_cpd#supported-languages)." %}
+            For the full list, see [Supported Languages](pmd_userdocs_cpd.html#supported-languages)." %}
 
 Like for PMD, CPD is started on Unix by `run.sh cpd` and on Windows by `cpd.bat`.
 

docs/pages/pmd/userdocs/suppressing_warnings.md

@@ -32,7 +32,7 @@ for you:
     changing the Rule, but you do not need to submit a patch back to the
     PMD project.
 
-If you need to modify the Rule, see [How to write a rule](pmd_devdocs_writing_pmd_rules.html).
+If you need to modify the Rule, see [How to write a rule](pmd_userdocs_extending_writing_pmd_rules.html).
 Otherwise, the other suppression methods are explained in the following sections.
 
 ## Annotations

docs/pages/release_notes_old.md

@@ -669,8 +669,8 @@ extended for lambda parameters with Java 11 via
 
 #### Modified Rules
 
-*   The Java rules [`AccessorClassGeneration`](pmd_rules_java_bestpracices.html#accessorclassgeneration) and
-    [`AccessorMethodGeneration`](pmd_rules_java_bestpracices.html#accessormethodgeneration) (both in category
+*   The Java rules [`AccessorClassGeneration`](pmd_rules_java_bestpractices.html#accessorclassgeneration) and
+    [`AccessorMethodGeneration`](pmd_rules_java_bestpractices.html#accessormethodgeneration) (both in category
     `java-bestpractices`) have been modified to be only valid up until Java 10. Java 11 adds support for
     [JEP 181: Nest-Based Access Control](http://openjdk.java.net/jeps/181) which avoids the generation of
     accessor classes / methods altogether.
@@ -1143,7 +1143,7 @@ Both are bugfixing releases.
 
 #### Disable Incremental Analysis
 
-Some time ago, we added support for [Incremental Analysis](pmd_userdocs_getting_started.html). On PMD 6.0.0, we
+Some time ago, we added support for [Incremental Analysis](pmd_userdocs_incremental_analysis.html). On PMD 6.0.0, we
 started to add warns when not using it, as we strongly believe it's a great improvement to our user's experience as
 analysis time is greatly reduced; and in the future we plan to have it enabled by default. However, we realize some
 scenarios don't benefit from it (ie: CI jobs), and having the warning logged can be noisy and cause confusion.
@@ -1767,7 +1767,7 @@ when using/setting values for rules, there are adjustments necessary when declar
 rules.
 
 Rule properties can be declared both for Java based rules and XPath rules.
-This is now very well documented in [Working with properties](pmd_devdocs_working_with_properties.html).
+This is now very well documented in [Working with properties](pmd_userdocs_extending_defining_properties.html).
 
 With PMD 6.0.0, multivalued properties are now also possible with XPath rules.