Partial update of the docs

Docs/Layers/tertiary_education.md

@@ -194,6 +194,38 @@ This is rendered with  `<a href='tel:{phone}'>{phone}</a>`
 
   - *<a href='tel:{contact:phone}'>{contact:phone}</a>*  corresponds with  `contact:phone~.+`
   - This option cannot be chosen as answer
- 
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+### leftover-questions 
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+This tagrendering has no question and is thus read-only
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+### minimap 
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+This tagrendering has no question and is thus read-only
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+### last_edit 
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+This tagrendering has no question and is thus read-only
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+This tagrendering is only visible in the popup if the following condition is met: `_last_edit:contributor~.+&_last_edit:changeset~.+` 
 
 This document is autogenerated from [assets/layers/tertiary_education/tertiary_education.json](https://github.com/pietervdvn/MapComplete/blob/develop/assets/layers/tertiary_education/tertiary_education.json)