Add general section to metadata tutorial #187

CHANGELOG.md

@@ -22,6 +22,7 @@ Here is a template for new release sections
 
 ### Added
 
+- Add general section to metadata tutorial [(#198)](https://github.com/OpenEnergyPlatform/academy/pull/198)
 - Add new open peer review course [(#196)](https://github.com/OpenEnergyPlatform/academy/pull/196)
 - Add the file CONTRIBUTE.md [(#194)](https://github.com/OpenEnergyPlatform/academy/pull/194)
 - Add new metadata course [(#195)](https://github.com/OpenEnergyPlatform/academy/pull/195)

docs/courses/07_metadata.md

@@ -21,24 +21,28 @@ tags:
 
 ## Introduction: What is Metadata?
 
-ToDo
+Metadata, in simple terms, refer to data about data.
+They provide valuable information regarding the characteristics, properties,
+and context of a specific data item.
+Metadata answer the questions of "who, what, when, where, and how" related to the data.
+Metadata plays a crucial role in organizing, managing, and understanding information.
 
 ## What is the Open Energy Metadata?
 
-- The [Open Energy Metadata](https://github.com/OpenEnergyPlatform/oemetadata) (OEMetadata) describe a metadata standard used to annotate energy related data
+- [Open Energy Metadata](https://github.com/OpenEnergyPlatform/oemetadata) (OEMetadata) describe a metadata standard used to annotate energy related data
 - The development of OEMetadata is a community effort and takes place on [GitHub](https://github.com/OpenEnergyPlatform/oemetadata/issues)
 - In the following sections of this course we have collected information on how to use the standard
 - There is a short :oep-icon-code: [tutorial on how to get started with OEMetadata](../tutorials/metadata/getting_started_with_OEMetadata.ipynb)
 
 ## What's the meaning of all the metadata keys?
 
-- There is a comprehensive list of keys, their meaning and example uses in the :oep-icon-text: [key description](https://github.com/OpenEnergyPlatform/oemetadata/blob/master/metadata/latest/metadata_key_description.md) in the OEMetadata repository
+- The OEMetadata repository provides a comprehensive list of keys, along with their meanings and examples of their uses, in the [key description](https://github.com/OpenEnergyPlatform/oemetadata/blob/master/metadata/latest/metadata_key_description.md) section.
 
 ## How can I work with OEMetadata?
 
+- A :oep-icon-code: [guide on publishing data on the OEP](../tutorials/upload/OEP_Research_Data_Publishing_Guidebook.ipynb) includes the creation of metadata
 - For all datasets on the [Open Energy Platform (OEP)](https://openenergy-platform.org/), you can look at provided metadata by clicking on "Meta Information"
     - If you are the owner of the dataset, you can click "edit" and you're directly working on the OEMetadata
-- [A guide on publishing data on the OEP](../tutorials/upload/OEP_Research_Data_Publishing_Guidebook.ipynb) includes the creation of metadata
 
 ## What other tools to work with OEMetadata are there?