Custom Plugin not available in Kong Manager

[wjamilaion]

Hi, I am looking for help to install my custom plugins in Kong, I tried the simple example https://github.com/Kong/kong-plugin as well but it's not showing up in Kong Manager. My setup is below.
Kong was already deployed in docker with DB enabled mode (kong/kong-gateway:3.5.0.2),
Mounted my plugin at /usr/local/share/lua/5.1/kong/plugins\hello,
added ENV KONG_PLUGINS: bundled, hello and started again my kong docker service.