src/README, branch release/11.1.0

MFC r318294:

2017-05-18T12:27:41Z

Correct the URL to instructions for updating system sources. PR: 219303 Sponsored by: The FreeBSD Foundation

README: remove nonexistent 'games' directory.

2016-05-18T10:43:13Z

Games were moved to usr.bin in r288485. (todo: add/describe 'targets' directory)

README: changes and fixups

2015-04-19T07:16:44Z

Two orthogonal goals: - try to make README look a little nicer on phabricator by using Remarkup syntax for commands (using `` instead of using a closing ') - try to make README look a little nicer on github. - Don't encourage `make world` when the handbook specifies otherwise - Change language around documentation to be a bit clearer MFC After: 2 weeks

README:

2015-04-12T23:43:41Z

- the reference to 'ancient' LINT file was added in 2000 [r64047 | alex | 2000-07-31]. Remove the reference entirely now. - add the tests directory

Add the cddl/ directory.

2010-11-14T11:32:56Z

Simply running ``make world'' will bomb unless you dig up the

2006-06-07T03:33:48Z

undocumented HISTORICAL_MAKE_WORLD variable and set it. Note it here so the blow up will not really be a surprise to people who read. Link the buildingworld chapter of our handbook in the README while I'm here.

Add a note explaining what the rescue/ directory is for.

2006-03-01T20:14:55Z

PR: docs/93990 Submitted by: Ulf Lilleengen MFC after: 3 days

KerberosIV de-orbit burn continues. Disconnect from "make world".

2003-03-08T10:01:26Z

Fix broken handbook links.

2002-07-21T16:45:30Z

Submitted by: "Dipl.Phys. Andreas Hiltenkamp"

Spell "FreeBSD" correctly.

2002-03-26T12:35:49Z

`buildworld' is no longer a strict prerequisite for `buildkernel' as of Makefile.inc1,v 1.184. Fix kernel configuration files path to look MI. Mention src/kerberos5.