typo

Language grammar and spelling check

1. Grammar and spelling is automatically checked by GitHub actions through TeXtidote. It uses a dictionary for custom words located at .github/mydict.txt
2. For local writing in VS Code there are two main extensions: vscode-spell-checker and vscode-spellright. Due to performance reasons, the former worked better for me. vscode-spell-check has its configuration and custom word list in .vscode/cspell.json.

About word lists…:

Sadly, the custom word lists from all three tools are not compatible. TeXtidote uses a .txt file, vscode-spell-checker a .json and vscode-spellright an .dict file.
As I only add words to the word list during writing, I copy the words from the vscode-spell-checker list (.json) to the one of TexTidote in the CI process with a simple jq script. See line 24 here for more information.