Adding back markdown linting. Ignore some rules.

nvim/lua/plugins/markdownlint-cli2.lua

@@ -5,7 +5,7 @@ return {
   opts = {
     linters = {
       ["markdownlint-cli2"] = {
-        args = { "--config", HOME .. "/.config/nvim/lua/plugins/.markdownlint-cli2.yaml", "--" },
+        args = { "--config", HOME .. "/.config/nvim/lua/plugins/markdownlint-cli2.yaml", "--" },
       },
     },
   },

nvim/lua/plugins/markdownlint-cli2.yml

@@ -0,0 +1,2 @@
+config:
+  MD013: false