added syntax highlighting

pyproject.toml

@@ -27,7 +27,7 @@ requires = ["hatchling"]
 build-backend = "hatchling.build"
 
 [tool.basedpyright]
-include = ["src"]
+include = ["src", "."]
 exclude = [
   "**/node_modules",
   "**/__pycache__",
@@ -47,7 +47,9 @@ reportExplicitAny = false
 reportAny = false
 reportUnusedCallResult = false
 reportCallInDefaultInitializer = false
-allowedUntypedLibraries = ["frontmatter"]
+enableTypeIgnoreComments = true
+reportIgnoreCommentWithoutRule = false
+allowedUntypedLibraries = ["frontmatter", "pygments"]
 
 [tool.ruff]
 line-length = 80
@@ -80,4 +82,5 @@ dev = [
     "basedpyright>=1.29.4",
     "pytest>=8.4.0",
     "ruff>=0.11.13",
+    "types-pygments>=2.19.0.20250516",
 ]