[krbdev.mit.edu #8082] git commit

[Tom Yu via RT]

Update doc build instructions

Documentation build instructions in doc/README were out of date.
Update them.

(cherry picked from commit bfc8f194ae431fc4fadaa431a2a636b4e9b025dd)

https://github.com/krb5/krb5/commit/5a1bd1d9c4e6f46ff03bd1c0957d803ea8671360
Author: Tom Yu <tlyu at mit.edu>
Commit: 5a1bd1d9c4e6f46ff03bd1c0957d803ea8671360
Branch: krb5-1.11
 doc/README         |   25 ++++---------------------
 doc/build_this.rst |    4 +++-
 2 files changed, 7 insertions(+), 22 deletions(-)