feat: Add markdown-oxide language server

languages.toml

@@ -45,6 +45,7 @@ kotlin-language-server = { command = "kotlin-language-server" }
 lean = { command = "lean", args = [ "--server" ] }
 ltex-ls = { command = "ltex-ls" }
 markdoc-ls = { command = "markdoc-ls", args = ["--stdio"] }
+markdown-oxide = { command = "markdown-oxide" }
 marksman = { command = "marksman", args = ["server"] }
 metals = { command = "metals", config = { "isHttpEnabled" = true } }
 mint = { command = "mint", args = ["ls"] }
@@ -1440,7 +1441,7 @@ scope = "source.md"
 injection-regex = "md|markdown"
 file-types = ["md", "markdown", "mkd", "mdwn", "mdown", "markdn", "mdtxt", "mdtext", "workbook", { glob = "PULLREQ_EDITMSG" }]
 roots = [".marksman.toml"]
-language-servers = [ "marksman" ]
+language-servers = [ "marksman", "markdown-oxide" ]
 indent = { tab-width = 2, unit = "  " }
 block-comment-tokens = { start = "<!--", end = "-->" }