chore: mark markdown files as linguist-vendored

Signed-off-by: hxreborn <hxreborn@duck.com>

Author: hxreborn

.gitattributes

@@ -13,4 +13,4 @@ lists/generated/*.txt linguist-language=AdBlock linguist-detectable
 *.yml linguist-detectable=false
 *.yaml linguist-detectable=false
 *.toml linguist-detectable=false
-*.md linguist-detectable=false
+*.md linguist-vendored

lists/sources.lock.json

@@ -1,9 +1,9 @@
 {
-  "generated": "2026-02-15T11:51:54+00:00",
+  "generated": "2026-02-15T11:50:59+00:00",
   "sources": {
     "EasyList": {
       "url": "https://easylist.to/easylist/easylist.txt",
-      "checksum": "sha256:75815f9e58c39d43",
+      "checksum": "sha256:84442025d4e90b9c",
       "selectors_extracted": 53,
       "exceptions_extracted": 0,
       "dropped_negated": 0,