Some tags are 404'ing

[haydentherapper]

Working:

• https://blog.sigstore.dev/tags/sigstore/
• https://blog.sigstore.dev/tags/python

Broken:

• https://blog.sigstore.dev//tags/Deployment
• https://blog.sigstore.dev//tags/Helm
• https://blog.sigstore.dev//tags/software%20supply%20chain
• https://blog.sigstore.dev//tags/supply%20chain%20security

My guess is spaces or capitalization break tagging for some reason.

Additionally all links to the tags on the blog post have a double / after blog.sigstore.dev.