feat(markdown): add rumdl server and fixer (#5115)

* feat: put in the main linter files

* feat: add to registry

* docs: add rumdl to docs

* tests: vader tests

* edit: actually split the options into two

* style: make rumdl fixer test mimic markdownlint

* fix: stupidity overwhelming

* fix: actually let's look for pyproject too

copied from tombi

* i'm a buffoon fix wrong indentation

* alignment ci is made for people like me

* missed toc entry

doc/ale-markdown.txt

@@ -244,6 +244,40 @@ g:ale_markdown_remark_lint_use_global
   See |ale-integrations-local-executables|
 
 
+===============================================================================
+rumdl                                                      *ale-markdown-rumdl*
+
+                                        *ale-options.markdown_rumdl_executable*
+                                              *g:ale_markdown_rumdl_executable*
+                                              *b:ale_markdown_rumdl_executable*
+markdown_rumdl_executable
+g:ale_markdown_rumdl_executable
+  Type: |String|
+  Default: `'rumdl'`
+
+  Override the invoked `rumdl` binary.
+
+                                           *ale-options.markdown_rumdl_options*
+                                                 *g:ale_markdown_rumdl_options*
+                                                 *b:ale_markdown_rumdl_options*
+markdown_rumdl_options
+g:ale_markdown_rumdl_options
+  Type: |String|
+  Default: `''`
+
+  This variable can be set to pass additional options to `rumdl server`.
+
+                                       *ale-options.markdown_rumdl_fmt_options*
+                                             *g:ale_markdown_rumdl_fmt_options*
+                                             *b:ale_markdown_rumdl_fmt_options*
+markdown_rumdl_fmt_options
+g:ale_markdown_rumdl_fmt_options
+  Type: |String|
+  Default: `'--silent'`
+
+  This variable can be set to pass additional options to `rumdl fmt`.
+
+
 ===============================================================================
 textlint                                                *ale-markdown-textlint*
 

doc/ale-supported-languages-and-tools.txt

@@ -417,6 +417,7 @@ Notes:
   * `pymarkdown`
   * `redpen`
   * `remark-lint`
+  * `rumdl`
   * `textlint`
   * `vale`
   * `write-good`

doc/ale.txt

@@ -3748,6 +3748,7 @@ documented in additional help files.
     prettier..............................|ale-markdown-prettier|
     pymarkdown............................|ale-markdown-pymarkdown|
     remark-lint...........................|ale-markdown-remark-lint|
+    rumdl.................................|ale-markdown-rumdl|
     textlint..............................|ale-markdown-textlint|
     write-good............................|ale-markdown-write-good|
     redpen................................|ale-markdown-redpen|