[monorepo][lg] - move over examples

examples/dataset-frictionless/README.md

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+This example creates a portal/showcase for a single dataset. The dataset should be a [Frictionless dataset (data package)][fd] i.e. there should be a `datapackage.json`.
+
+[fd]: https://frictionlessdata.io/data-packages/
+
+## How to use
+
+```bash
+npx create-next-app -e https://github.com/datopian/portal.js/tree/main/examples/dataset-frictionless
+# choose a name for your portal when prompted e.g. your-portal or go with default my-app
+
+# then run it
+cd your-portal
+yarn #install packages
+yarn dev #start app in dev mode
+```
+
+You should see the demo portal running with the example dataset provided:
+
+<img src="./assets/demo.gif" />
+
+### Use your own dataset
+
+You can try it out with other [Frictionless datasets](https://datahub.io/search).
+
+In the directory of your portal do:
+
+```bash
+export PORTAL_DATASET_PATH=/path/to/my/dataset
+```
+
+Then restart the dev server:
+
+```
+yarn dev
+```
+
+Check the portal page and it should have updated e.g. like:
+
+![](https://i.imgur.com/KSEtNF1.png)