add comments

Author: mydea

packages/solid/tsconfig.solidrouter-types.json

@@ -8,6 +8,8 @@
     "outDir": "./"
   },
 
+  "//": "This type is built separately because it is for a subpath export, which has problems if it is not in the root",
   "include": ["src/solidrouter.ts"],
+  "//": "Without this, we cannot output into the root dir",
   "exclude": []
 }

packages/solid/tsconfig.types.json

@@ -8,5 +8,6 @@
     "outDir": "build/types"
   },
 
+  "//": "This is built separately in tsconfig.solidrouter-types.json",
   "exclude": ["src/solidrouter.ts"]
 }