Update README.md to add missing Linux dependency zlib1g-dev
tree3c6fffb8474e58528e43623bb1045c5f6709afe2
drwxr-xr-x - .github
-rw-r--r-- 136 .gitignore
-rw-r--r-- 306 .gitmodules
-rw-r--r-- 713 .travis.yml
-rw-r--r-- 1040 CMakeLists.txt
-rw-r--r-- 540 Doxyfile.in
-rw-r--r-- 1470 LICENSE
-rw-r--r-- 4998 README.md
-rw-r--r-- 1612 SCR-mfgtools.txt
-rw-r--r-- 5840 appveyor.yml
m--------- - bzip2
m--------- - libusb
drwxr-xr-x - libuuu
drwxr-xr-x - msvc
drwxr-xr-x - snap
drwxr-xr-x - uuu
drwxr-xr-x - webusb
m--------- - zlib
m--------- - zstd