updated openapi readmes

Author: Jolanrensen

dataframe-openapi-generator/README.md

@@ -0,0 +1,13 @@
+## :dataframe-openapi
+
+This module, published as `dataframe-openapi-generator` contains all logic and tests for DataFrame to be able to import
+OpenAPI specifications as auto-generated data schemas. This module is a sister module to
+[`dataframe-openapi`](../dataframe-openapi):
+
+- `dataframe-openapi-generator` is used as a dependency of the Gradle plugin and Jupyter plugin to be able to generate
+    data schemas from OpenAPI specifications.
+- `dataframe-openapi` must be used as a dependency of a user-project to be able to use the generated data schemas.
+
+See [Import OpenAPI Schemas in Gradle project](https://kotlin.github.io/dataframe/schemasimportopenapigradle.html) and
+[Import Data Schemas, e.g. from OpenAPI, in Jupyter](https://kotlin.github.io/dataframe/schemasimportopenapijupyter.html)
+for more information about how to use it.

dataframe-openapi/README.md

@@ -1,7 +1,12 @@
 ## :dataframe-openapi
 
-This module, published as `dataframe-openapi` contains all logic and tests for DataFrame to be able to import
-OpenAPI specifications as auto-generated data schemas.
+This module, published as `dataframe-openapi` contains some functions to be able to use auto-generated
+data schemas from OpenAPI specifications. This module is a sister module to
+[`dataframe-openapi-generator`](../dataframe-openapi-generator):
+
+- `dataframe-openapi-generator` is used as a dependency of the Gradle plugin and Jupyter plugin to be able to generate
+  data schemas from OpenAPI specifications.
+- `dataframe-openapi` must be used as a dependency of a user-project to be able to use the generated data schemas.
 
 See [Import OpenAPI Schemas in Gradle project](https://kotlin.github.io/dataframe/schemasimportopenapigradle.html) and
 [Import Data Schemas, e.g. from OpenAPI, in Jupyter](https://kotlin.github.io/dataframe/schemasimportopenapijupyter.html)