Pie-models

* Added dropout attributes to TokenClassificationModelWithSeq2SeqEncoderAndCrf (48) jk-tripathy

:rocket: Features

* add TokenClassificationModelWithSeq2SeqEncoderAndCrf (2) ArneBinder

:beetle: Fixes

* fix codecov workflow (45) ArneBinder

* Update `pytorch-ie` to 0.26 (43) ArneBinder

* set max `pytorch-ie` version to `0.25` (41) ArneBinder

:beetle: Fixes

* fix paths in readme again (40) ArneBinder
* fix paths in readme (39) ArneBinder

:books: Documentation

* fix paths in readme again (40) ArneBinder
* fix paths in readme (39) ArneBinder
* list available models and taskmodules in the readme (38) ArneBinder
* improve readme (36) ArneBinder
* improve install instructions (35) ArneBinder

* fix release workflow (33) ArneBinder