Update dependency installation instructions in the README
Update dependency installation instructions in the README

The -jdk package is also required by some of the Maven plugins...

Signed-off-by: Alexandre Montplaisir <0b9d8e7da097b5bbfe36e48cca5acfe475f18227@efficios.com>

alexmonthy/lttng-scope,lttng/lttng-scope,lttng/lttng-scope,lttng/lttng-scope,lttng/lttng-scope,alexmonthy/lttng-scope,alexmonthy/lttng-scope