update contributing and history files

CONTRIBUTING.md

@@ -1,39 +1,41 @@
 ## How to contribute
 
-Thank you for considering contributing to Trafilatura! Your contributions make the software and its documentation better.
+Your contributions make the software and its documentation better. A special thanks to all the [contributors](https://github.com/adbar/trafilatura/graphs/contributors) who have played a part in Trafilatura.
 
 
 There are many ways to contribute, you could:
 
   * Improve the documentation: Write tutorials and guides, correct mistakes, or translate existing content.
-  * Find bugs and submit bug reports: Help making Trafilatura a robust and versatile tool.
+  * Find bugs and submit bug reports: Help making Trafilatura an even more robust tool.
   * Submit feature requests: Share your feedback and suggestions.
   * Write code: Fix bugs or add new features.
 
 
 Here are some important resources:
 
   * [List of currently open issues](https://github.com/adbar/trafilatura/issues) (no pretention to exhaustivity!)
-  * [Roadmap and milestones](https://github.com/adbar/trafilatura/milestones)
-  * [How to Contribute to Open Source](https://opensource.guide/how-to-contribute/)
+  * [How to contribute to open source](https://opensource.guide/how-to-contribute/)
 
 
-## Submitting changes
+## Testing and evaluating the code
 
-Please send a [GitHub Pull Request to trafilatura](https://github.com/adbar/trafilatura/pull/new/master) with a clear list of what you have done (read more about [pull requests](http://help.github.com/pull-requests/)).
+Here is how you can run the tests and code quality checks:
 
-**Working on your first Pull Request?** See this tutorial: [How To Create a Pull Request on GitHub](https://www.digitalocean.com/community/tutorials/how-to-create-a-pull-request-on-github)
+- Install the necessary packages with `pip install trafilatura[dev]`
+- Run `pytest` from trafilatura's directory, or select a particular test suite, for example `realworld_tests.py`, and run `pytest realworld_tests.py` or simply `python3 realworld_tests.py`
+- Run `mypy` on the directory: `mypy trafilatura/`
+- See also the [tests Readme](tests/README.rst) for information on the evaluation benchmark
 
+Pull requests will only be accepted if they there are no errors in pytest and mypy.
 
-A special thanks to all the [contributors](https://github.com/adbar/trafilatura/graphs/contributors) who have played a part in Trafilatura.
+If you work on text extraction it is useful to check if performance is equal or better on the benchmark.
 
 
-## Testing and evaluating the code
+## Submitting changes
 
-Here is how you can run the tests if you wish to correct the errors and further improve the code:
+Please send a pull request to Trafilatura with a list of what you have done (read more about [pull requests](http://help.github.com/pull-requests/)).
 
-- Run `pytest` from trafilatura's directory, or select a particular test suite, for example `realworld_tests.py`, and run `pytest realworld_tests.py` or simply `python3 realworld_tests.py`
-- See also the [tests Readme](tests/README.rst) for information on the evaluation
+**Working on your first Pull Request?** See this tutorial: [How To Create a Pull Request on GitHub](https://www.digitalocean.com/community/tutorials/how-to-create-a-pull-request-on-github)
 
 
 

HISTORY.md

@@ -21,13 +21,14 @@ Fixes:
 - more robust mapping for conversion to HTML (#721)
 - CLI downloads: use all information in settings file (#734)
 - downloads: cleaner urllib3 code (#736)
-- CLI: print URLs early for feeds and sitemaps with `--list` with @gremid (#744)
 - refine table markdown output by @unsleepy22 (#752)
+- extraction fix: images in text nodes by @unsleepy22 (#757)
 
 Metadata:
 - more robust URL extraction (#710)
 
 Command-line interface:
+- CLI: print URLs early for feeds and sitemaps with `--list` with @gremid (#744)
 - CLI: add 126 exit code for high error ratio (#747)
 
 Maintenance: