RFR: Add info about MANPATH to README. [v2]

Mon Jun 29 11:15:58 UTC 2020

> Add info about MANPATH to README.

Magnus Ihse Bursie has updated the pull request incrementally with one additional commit since the last revision:

  Point user to build output instead of man page sources.

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Changes:
  - all: https://git.openjdk.java.net/skara/pull/680/files
  - new: https://git.openjdk.java.net/skara/pull/680/files/ec7361f4..105721f4

Webrevs:
 - full: https://webrevs.openjdk.java.net/skara/680/webrev.01
 - incr: https://webrevs.openjdk.java.net/skara/680/webrev.00-01

  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.java.net/skara/pull/680.diff
  Fetch: git fetch https://git.openjdk.java.net/skara pull/680/head:pull/680

PR: https://git.openjdk.java.net/skara/pull/680