update readme

Update namelist variable and add more outputs (#42)

Update README.md

Release 4.0.1 (#30)

Bump version and fix notation for tutorials and readme.

Add paper (#29)

TEB open source v3_sfx8.1.

Manually constructed from the official project release. Archive downloaded and extracted as-is from https://opensource.umr-cnrm.fr/attachments/download/2119/TEB_open_source_v3_sfx8.1.tar.gz

TEB open source v2.4406.

Manually constructed from the official project release. Archive downloaded and extracted as-is from https://opensource.umr-cnrm.fr/attachments/download/1555/TEB_open_source_v2.4406.tar.gz

TEB open source v1.1550.

Manually constructed from the official project release. Archive downloaded and extracted as-is from https://opensource.umr-cnrm.fr/attachments/download/180/TEB_open_source_v1.1550.tar.gz