message: WIP write a bridge doc
diff: @@ -5,10 +5,7 @@ As explained in the [overview](../overview/imodel-bridges.md), a "bridge" is a p
  2. Aligns the source data with the BIS schema and preferrably a domain schema, and
  3. Writes BIS data to an iModel.
  -A bridge works directly with a local [briefcase](./Glossary.md#briefcase), using the [IModelDb]($backend) class. It then pushes [ChangeSets](./Glossary.md#changeset) to the server that manages the iModel, such as [iModelHub](../overview/imodelHub.md).
  -
  -## Bridge Tasks
  -A bridge must:
  +Specificaly, a bridge must:
  * [Open a local briefcase copy](./backend/IModelDb.md) of the iModel that is to be updated.
  * Import or Update Schema
  * Possibly [import an appropriate BIS schema into the briefcase](./backend/SchemasAndElementsInTypeScript.md#importing-the-schema) or upgrade an existing schema.
  @@ -17,8 +14,8 @@ A bridge must:
  * Connect to the data source.
  * Detect changes to the source data.
  * [Transform](../overview/imodel-bridges.md#data-alignment) the new or changed source data into the target BIS schema.
  - * Write BIS data to the local briefcase.
  - * Handle deleted source data.
  + * Write the resulting BIS data to the local briefcase.
  + * Remove BIS data corresponding to deleted source data.
  * Obtain required Locks and Codes from the iModel server and/or code server.
  * Push changes to the iModel server.
  