Add ID doc

content/docs/api/Glimesh IDs.md

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+---
+title: Glimesh IDs
+---
+## IDs
+
+IDs are a unique identifier for data in the API. Each item of the same type will have its own ID. This can be used to separate it from other items. An ID **will never change** unlike other unique fields (username). IDs are auto-incremented which means that the higher the ID the newer the item is.
+
+If you are confused about which ID to use simply look at what the query requires. All parameters can be found in the [API Explorer](/api-docs/docs/api/api-explorer).
+
+### Channel ID
+
+A channel ID identifies a channel. It is used in channel related queries.
+
+### Streamer ID
+
+A **streamer ID is the same as a user ID**. We use a different name to prevent confusion in certain queries (followers).
+
+### User ID
+
+A user ID identifies a user. Used in user related queries.