Strings present in techniques, missed in principles

[gregoriopellegrino]

I have identified these strings (below the IDs) that are present in the techniques, but are missing in the principles:

• conformance-aaa
• unknown-conformance
• conformance-no
• conformance-certifier
• conformance-certifier-credentials
• conformance-wcag-2-2
• conformance-level-aaa
• pre-recorded-audio-no-metadata
• navigation-structural
• navigation-no-metadata
• charts-diagrams-formulas-accessible-chemistry
• hazards-plural
• hazards-singular
• hazards-no-metadata
• accessibility-summary-no-metadata
• tbd
• legal-considerations-no-metadata
• additional-accessibility-information-adaptation-audio-descriptions
• additional-accessibility-information-adaptation-braille
• additional-accessibility-information-adaptation-closed-captions
• additional-accessibility-information-adaptation-open-captions
• additional-accessibility-information-adaptation-tactile_graphic
• additional-accessibility-information-adaptation-tactile_object
• additional-accessibility-information-adaptation-transcript
• additional-accessibility-information-adaptation-sign-language
• additional-accessibility-information-clarity-aria
• additional-accessibility-information-clarity-full-ruby-annotations
• additional-accessibility-information-clarity-text-to-speech-hinting
• additional-accessibility-information-clarity-high-contrast-between-foreground-and-background-audio
• additional-accessibility-information-clarity-high-contrast-between-text-and-background
• additional-accessibility-information-clarity-large-print
• additional-accessibility-information-clarity-page-breaks
• additional-accessibility-information-clarity-ruby-annotations
• charts-diagrams-formulas-non-graphical-data
• additional-accessibility-information-adaptation-dyslexia-readability
• additional-accessibility-information-adaptation-full-transcript
• additional-accessibility-information-clarity-color-not-sole-means-of-conveying-information
• additional-accessibility-information-clarity-ultra-high-contrast-between-text-and-background
• additional-accessibility-information-clarity-visible-page-numbering
• additional-accessibility-information-clarity-without-background-sounds

Probably not all are to be included in the principles...