Define what are `<key-bindings>` under `csharprepl -h`

[matheusanmo]

Feature Description

Under the Key Bindings section of csharprepl -h option arguments are described as <key-binding>, but there's no explanation on what are those. I was able to find under CSharpRepl.Services/Configuration.cs line 185 a variable declaration:

const string GeneralInfo = "Key pattern must contain one key with optional modifiers (Alt/Shift/Control). E.g. 'Enter', 'Control+A', '(', 'Alt+.', ...";

that explains very nicely what a <key-binding> is. I believe this information should also be on csharprepl -h.