message: doc - backend learning TOC WIP
diff: @@ -19,8 +19,12 @@ The backend library is delivered in the **npm package** `@bentley/imodeljs-backe
  ## IModelDb
  * [Open an IModelDb](./IModelDb.md)
  +* [Writing to an IModelDb](./IModelDb.readwrite.md)
  +* [Concurrency control](./ConcurrencyControl.md)
  ## Loading and Creating Elements
  +* [Access Elements](./AccessElements.md)
  +* [Schemas and Elements in TypeScript](./SchemasAndElementsInTypeScript.md)
  ## ECSQL
  @@ -29,14 +33,8 @@ The backend library is delivered in the **npm package** `@bentley/imodeljs-backe
  * [Code Examples](./ECSQLCodeExamples)
  * [Frequently used ECSQL queries](./ECSQL-queries)
  -## Schemas
  -
  -* [Schemas and Elements in TypeScript](./SchemasAndElementsInTypeScript.md)
  -
  ## Dealing with Codes
  ## Change Summary
  * [Change Summary Overview](../ChangeSummaries)
  -
  -## BriefcaseManager
  