Wrap prerequisite package installation commands
Wrap prerequisite package installation commands

The new GitHub layout appears to limit the line length of code blocks
to 80 characters.

Signed-off-by: Jussi Virtanen <2a7e40f91a3be32dfb7e35af6e476a252ebdb4f3@gmail.com>

libtrading/libtrading,penberg/libtrading,divaykin/libtrading,fengzhyuan/libtrading,svdev/libtrading,svdev/libtrading,etoestja/libtrading,libtrading/libtrading,NunoEdgarGub1/libtrading,penberg/libtrading,mstanichenko/libtrading,femtotrader/libtrading,jvirtanen/libtrading,etoestja/libtrading,mstanichenko/libtrading,divaykin/libtrading,NunoEdgarGub1/libtrading,femtotrader/libtrading,jvirtanen/libtrading,fengzhyuan/libtrading