message: Update shell notes
diff: @@ -179,6 +179,8 @@ You can trigger a workspace image rebuild with the following URL pattern: `https
  ## Configure a custom shell
  +> **Feedback needed**: Custom shell support is in the works. The below shows a method for running some of the `~/.bashrc.d` startup scripts. To leave feedback on the approach, please see this GitHub issue: [#10105](https://github.com/gitpod-io/gitpod/issues/10105).
  +
  For example, if you wish to default your workspace-image to `zsh`, you could do it from your [custom dockerfile](#custom-docker-image) with the following line:
  ```dockerfile
  @@ -191,42 +193,8 @@ Caveat: Shells like `fish`, `zsh` and etc. are not POSIX-compliant or bash-compa
  ### Load bash environment in custom shell
  -Currently we put startup scripts for the workspace-images at `~/.bashrc.d`, that means if you change your SHELL from `bash` to something else, it will not be able to load them into it's session environment. You can load it in two ways:
  -
  -#### From [custom-dockerfile](#custom-docker-image)
  -
  -Append the following in your dockerfile:
  -
  -```dockerfile
  -USER root
  -RUN mkdir -m 755 -p /usr/share/fish/vendor_conf.d /etc/zsh \
  - # For zsh
  - && echo "$(curl -sSL "https://raw.githubusercontent.com/axonasif/bashenv.zsh/master/src/lib.sh")bashenv.zsh" \
  - >> /etc/zsh/zshrc \
  - # For fish
  - && echo "$(curl -sSL "https://raw.githubusercontent.com/axonasif/bashenv.fish/master/conf.d/bashenv.fish")" \
  - >> /usr/share/fish/vendor_conf.d/autoload_bash.fish \
  - && chmod 644 /etc/zsh/zshrc /usr/share/fish/vendor_conf.d/autoload_bash.fish
  -USER gitpod
  -```
  -
  -#### From [dotfiles](/docs/configure/user-settings/dotfiles)
  -
  -Use following in your `install.sh` for example:
  +Currently we put some startup scripts for the workspace-images at `~/.bashrc.d`, that means if you change your SHELL from `bash` to something else, they will not auto run. You could run the following command from your SHELL to workaround:
  ```bash
  -#!/usr/bin/env bash
  -
  -fish_target="/usr/share/fish/vendor_conf.d/autoload_bash.fish"
  -zsh_target="/etc/zsh/autoload_bash.zsh"
  -
  -sudo mkdir -p "${fish_target%/*}" "${zsh_target%/*}"
  -
  -# Fish
  -sudo sh -c 'curl -sSL "https://raw.githubusercontent.com/axonasif/bashenv.fish/master/conf.d/bashenv.fish" --output '"$fish_target"
  -
  -# Zsh
  -sudo sh -c 'echo "$(curl -sSL "https://raw.githubusercontent.com/axonasif/bashenv.zsh/master/src/lib.sh")bashenv.zsh)" > '"$zsh_target"
  -
  -sudo chmod 644 "$fish_target" "$zsh_target"
  +bash -lic 'true'
  ```
  