update release text

release_text.md

@@ -1,6 +1,12 @@
-Release of RIMSSchemeDrawer `v3.0.0rc1`
+Release of RIMSSchemeDrawer `v3.0.0`
 
-This is the first release candidate for the new version of the RIMSSchemeDrawer.
-It should be fully compatible with the previous version's config files, however, discrepancies might occur since the ionization potential is now coded into the drawer itself and cannot be user selected anymore. Be aware of changes.
+This is the new RIMSSchemeDrawer `v3.0.0` release. The main user features that are new are the following:
 
-Currently, executables for Linux, Windows, and MacOS are published, however, these are not installers yet. The full release will include installers that place the program nicely for you.
+- Figures can be plotted in light and dark mode with transparent or solid backgrounds (useful for presentations).
+- The ionization potential is automatically filled and not anymore user supplied. For details on ionization potential, see the [RIS database website](https://rims-code.github.io).
+- Proper documentation of the program is available [here](https://rimsschemedrawer.readthedocs.io/en/latest/).
+- Config files loading and saving are compatible with submitting schemes for the [RIS database website](https://rims-code.github.io).
+- Lasers that were used can now be selected (mainly important for database submission).
+- The program is not only available as a pre-packaged installer, but can also be installed directly from `pypi` (see [docs](https://rimsschemedrawer.readthedocs.io/en/latest/install.html)).
+
+As always, if you find any issues, please report them and have fun with the new version.