feat: add terms of service pdf #671

Job	Run time
yaml-validation (Meta-Main Validation, schemas/meta-main.yml, meta/main)	18s
yaml-validation (Meta-Category Validation, schemas/meta-category.yml, meta/category)	16s
yaml-validation (People Validation, schemas/people.yml, about/people.yml)	18s
yaml-validation (Banners Frontmatter Validation, schemas/banners-frontmatter.yml, banners/announc...	33s
yaml-validation (Help Validation, schemas/meta-category.yml, help)	16s
yaml-validation (Collaboration Validation, schemas/collaborations.yml, our-work/collaborations)	19s
yaml-validation (Software Validation, schemas/software.yml, our-work/software)	15s
yaml-validation (Workshops Validation, schemas/workshops-and-talks.yml, our-work/workshops-and-ta...	16s
yaml-validation (Services Frontmatter Validation, schemas/services-frontmatter.yml, services)	20s
yaml-validation (About Frontmatter Validation, schemas/about-frontmatter.yml, temp)	23s
build_and_preview	7m 32s
	10m 46s

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