Tags button build 404 url

Created by: abelsromero

Describe the bug Project tags generate an URL (ie. http://{domain}/technology_types/java/) that does not exists. For example the following project Has Java tag which points to https://{domain}technology_types/java/.

To Reproduce Steps to reproduce the behavior:

1. Add new project with content

---
Title: Eclipse Austen
license: Eclipse Public License 2.0
is_incubated: true
website: https://projects.eclipse.org/proposals/eclipse-austen
github: https://myrepo.com
technology_types: [Java]
---
A description.

2. Build preview accorfing to instructions in README (currently: npm install && hugo server --destination=public)
3. Go to http://localhost:1313/projects/
4. Click on the tag
5. 404 screen

Expected behavior At least not to fail.

Screenshots n/a

Desktop (please complete the following information):

• OS: Linux 5.11.14-1-MANJARO
• Browser: Firefox
• Version: 88.0 64bits

Smartphone (please complete the following information): n/a

Additional context https://asciidoc-wg.eclipse.org/technology_types/java/ also returns a 404.