Update path to `@popperjs/core` in parcel.md
Update path to `@popperjs/core` in parcel.md

-│   └── popper.js/
+│   └── @popperjs/
+|       └── core/

coliff/bootstrap,m5o/bootstrap,inway/bootstrap,tjkohli/bootstrap,tjkohli/bootstrap,twbs/bootstrap,twbs/bootstrap,m5o/bootstrap,inway/bootstrap,inway/bootstrap,coliff/bootstrap