community/go: copy missing directory 'misc'
the copy command for copying the 'src' directory can be simply added to the existing command which copies the directories 'pkg' and 'lib. the 'misc' directory is mistakenly added in go-doc despite it being essential to a go distribution (eg. WASM)
additionally, some applications hard code the 'misc' directory and expect it to be present in $GOROOT.
cc: @nmeum