pgAdmin 4 commit: Clarify how virtual envs can be used in WSGI mode,an

Clarify how virtual envs can be used in WSGI mode, and ensure we ship the required bits on Windows.

Branch
------
WEBPACK_DEVEL

Details
-------
https://git.postgresql.org/gitweb?p=pgadmin4.git;a=commitdiff;h=a4e987d3316f3e06ee3a7772b001589bc6bb43e4
Author: Surinder Kumar <surinder.kumar@enterprisedb.com>

Modified Files
--------------
Make-MinGW.bat                   |  1 -
Make.bat                         |  1 -
docs/en_US/server_deployment.rst | 13 ++++++++++++-
3 files changed, 12 insertions(+), 3 deletions(-)