CDRIVER-1018 update guide for building from git
CDRIVER-1018 update guide for building from git

Convey-Compliance/libbson,Convey-Compliance/libbson,mongodb/libbson,paulmelnikow/libbson,bjori/libbson,mongodb/libbson,alexeyvo/libbson,rcsanchez97/libbson,mapr/libbson,paulmelnikow/libbson,paulmelnikow/libbson,rcsanchez97/libbson,alexeyvo/libbson,bjori/libbson,ajdavis/libbson,bjori/libbson,Convey-Compliance/libbson,paulmelnikow/libbson,ajdavis/libbson,alexeyvo/libbson,rcsanchez97/libbson,mapr/libbson,paulmelnikow/libbson,ajdavis/libbson,mapr/libbson,mongodb/libbson