adds: tweaks

templates/.zshrc.j2

@@ -7,6 +7,13 @@ export PATH=${PATH}:${ANDROID_HOME}/tools
 export PATH=${PATH}:${ANDROID_HOME}/platform-tools
 export PATH=/usr/local/opt/imagemagick@6/bin:${PATH}
 
+# For compilers to find zlib you may need to set:
+export LDFLAGS="${LDFLAGS} -L/usr/local/opt/zlib/lib"
+export CPPFLAGS="${CPPFLAGS} -I/usr/local/opt/zlib/include"
+
+# For pkg-config to find zlib you may need to set:
+export PKG_CONFIG_PATH="${PKG_CONFIG_PATH} /usr/local/opt/zlib/lib/pkgconfig"
+
 # ZSH setup
 export ZSH=$HOME/.oh-my-zsh
 ZSH_THEME="robbyrussell"