shtoolsreadme: Fix '{' character use in the functions parser
shtoolsreadme: Fix '{' character use in the functions parser

 * Breaks scripts parsing inside zsh

Change-Id: Iba21b31986af4502e1aeb451b8e68667bc819926
Signed-off-by: Adrian DC <01fb3892f39957945220431e7409156544d2f041@gmail.com>

AdrianDC/android_development_shell_tools,AdrianDC/android_development_shell_tools