Merge pull request #5378 from piratabrasileiro1/main

add schema

Author: ahpook

topics/json-ld/index.md

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+---
+display_name: json-ld
+related: json,schema
+short_description: JSON-LD is a language that emerged in 2010 to organize data contained in JavaScript files.
+topic: json-ld
+wikipedia_url: https://en.wikipedia.org/wiki/JSON-LD
+---
+JSON-LD is a format that emerged in 2010 to organize data contained in JavaScript files and is maintained by the JSON for Linking Data Community Group.

topics/schema/index.md

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+---
+aliases: schemas,schema-org
+display_name: Schema
+related: microformat,json-ld,structured-data
+short_description: Schema is language launched in 2011 by google, bing and yahoo  marking up web pages with structured data.
+topic: schema
+wikipedia_url: https://en.wikipedia.org/wiki/Schema.org
+---
+Schema is language launched in june 2, 2011, by Google, Bing and Yahoo  marking up web pages with structured data.

topics/structured-data/index.md

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+---
+display_name: Structured-data
+short_description: Structured data is a method of defining data in a structured way to represent elements of a subject.
+aliases: data-model
+topic: structured-data
+wikipedia_url: https://en.wikipedia.org/wiki/Data_model
+---
+Structured data is a method of defining data in a structured way to represent elements of a subject; it first emerged in 1958 as a way to organize data.