chore: update config files

.github/pull_request_template.md

@@ -1,5 +1,5 @@
 ## Checklist
-- [ ] Adhered to the `stylua.toml`.
 - [ ] Used only camelCase variable names.
-- [ ] If functionality is added or modified, also made respective changes to the readme.
+- [ ] If functionality is added or modified, also made respective changes to the
+  readme.
 - [ ] Used conventional commits keywords.

.markdownlint.yaml

@@ -0,0 +1,26 @@
+# yaml-language-server: $schema=https://raw.githubusercontent.com/DavidAnson/markdownlint/main/schema/markdownlint-config-schema.json
+#───────────────────────────────────────────────────────────────────────────────
+# Defaults https://github.com/DavidAnson/markdownlint/blob/main/schema/.markdownlint.yaml
+# DOCS https://github.com/markdownlint/markdownlint/blob/main/docs/RULES.md
+#───────────────────────────────────────────────────────────────────────────────
+
+# MODIFIED SETTINGS
+blanks-around-headings:
+  lines_below: 0 # space waster
+ul-style: { style: sublist }
+
+# not autofixable
+ol-prefix: { style: ordered } 
+line-length:
+  tables: false
+  code_blocks: false
+no-inline-html:
+  allowed_elements: [img, details, summary, kbd, a, br]
+
+#─────────────────────────────────────────────────────────────────────────────
+# DISABLED
+ul-indent: false # not compatible with using tabs
+no-hard-tabs: false # taken care of by editorconfig
+blanks-around-lists: false # space waster
+first-line-heading: false # e.g., ignore-comments
+no-emphasis-as-heading: false # sometimes useful

.stylua.toml

@@ -1,7 +1,10 @@
 # https://github.com/JohnnyMorganz/StyLua#options
-column_width = 105
+column_width = 100
 indent_type = "Tabs"
 indent_width = 3
 quote_style = "AutoPreferDouble"
 call_parentheses = "NoSingleTable"
 collapse_simple_statement = "Always"
+
+[sort_requires]
+enabled = true

selene.toml

@@ -1,18 +0,0 @@
-std = "lua51" # LuaJit (used by nvim) is based on Lua 5.1
-
-[lints]
-# disabled since duplication with LSP
-undefined_variable = "allow"
-unused_variable = "allow"
-empty_if = "allow"
-unscoped_variables = "allow"
-multiple_statements = "allow"
-
-# enabled
-high_cyclomatic_complexity = "warn"
-
-# changed severity
-if_same_then_else = "warn"
-
-[config]
-high_cyclomatic_complexity = { maximum_complexity = 20 }