Update Web Components MDN link in README.md
Update Web Components MDN link in README.md

snuggs/snuggsi,snuggs/snuggsi,devpunks/snuggsi,devpunks/snuggsi,devpunks/snuggsi,snuggs/snuggsi,devpunks/snuggsi,snuggs/snuggsi,devpunks/snuggsi