Document how to start uwazi-docker with test data

[fititnt]

From #48 (comment) by @mayeulk

Is there a test database already populated with documents, a full data model with many relationships among entities, a rich collection, etc?
This could help testing a lot.
Thank you.

Reports from #48 and #50 would be easy to debug already with testdata.

In theory, this already is possible, because the README.md (Advanced) All initialization options with default values give a hint on how to change a few variables. But last update on this repository, I did not investigate which exactly path was used for testdata.

[mayeulk]

Thanks for this. I first did not see that clicking the arrow there would display some text.
I could not find the path, in the container, in the doc or on uwazi's git.
I did a "yarn test" within the container; after 30 minutes, I/O started on container uwazi-docker-mongo-1; 100 MB in one hour (still, at the end, there were no documents in the GUI).

there are some import { data } from './testData';, see https://github.com/search?q=repo%3Ahuridocs%2Fuwazi%20testdata&type=code

However, some Uwazi users allow to export large quantities of data as CSV; for instance: https://www.girlsrightsplatform.org/library/ (their terms and conditions do not state any license; unsure how to reuse/share this).

[fititnt]

Ok, while it does not import the PDFs and JPGs from the fixtures, it does load the data.

Even before the next commits I will make, instead of this

git clone https://github.com/fititnt/uwazi-docker.git
cd uwazi-docker
docker compose run -e IS_FIRST_RUN=true --rm uwazi # Install/Re-install from empty data

Run with this

git clone https://github.com/fititnt/uwazi-docker.git
cd uwazi-docker
docker compose run -e IS_FIRST_RUN=true -e UWAZI_GIT_RELEASE_REF=production -e DB_INITIALIZATION_PATH=/home/node/uwazi/uwazi-fixtures/dump/uwazi_development --rm uwazi

Then already will have a result like this

I guess a shortcut for this option, from IS_FIRST_RUN=true to IS_FIRST_DEMO_RUN=true, would already initialize the first run not with blank state, but with data from https://github.com/huridocs/uwazi/tree/development/uwazi-fixtures

[fititnt]

Ok, I will close this issue, but now theres another option (maybe will need improve documentation, but in theory should allow both start with blank state and with test data

### Install
Run these commands on your terminal **only** the first time:

```bash
git clone https://github.com/fititnt/uwazi-docker.git
cd uwazi-docker
docker compose run -e IS_FIRST_RUN=true --rm uwazi # Install without sample data
# docker compose run -e IS_FIRST_DEMO_RUN=true --rm uwazi # Install with sample data

With very fast internet and disks, this step will take between 8 to 15 minutes.
The IS_FIRST_DEMO_RUN=true is an alternative that starts with test/example data.

Also, I noticed that the testdata have a different initial password than the blank state, but changed that part of documentation.

If anyone in the future have problems starting the testdata, either commend here again or can open a new issue.

(now the other topics migth get easier to check)