docs directory is out-of-date and superceded by cmucl.common-lisp.dev
The docs directory contains the original documentation for various bits of cmucl-related items include the user manual, the internals manual, clm, and hemlock. These are no longer maintained here and have been essentially moved to a new repo at cmucl.common-lisp.dev.
We should either remove these or add a README
file to say so.
But see also cmucl.common-lisp.dev#45 (closed) which needs to be handled if we decide to remove this directory completely.