Update of episode on Particle package

[eduardo-rodrigues]

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[eduardo-rodrigues]

This is a little update to avoid deprecated methods about to be removed and add 1-2 extra examples of functionality provided.

[jpivarski]

I confirm that this is an essential update. In the latest version of Particle (0.23.1),

>>> import particle
>>> particle.Particle.from_string("Z0")
<stdin>:1: DeprecationWarning: This method is deprecated and will be removed from version 0.23.0. Use finditer or findall instead.
<Particle: name="Z0", pdgid=23, mass=91187.6 ± 2.1 MeV>

but

>>> import particle
>>> particle.Particle.from_name("Z0")
<Particle: name="Z0", pdgid=23, mass=91187.6 ± 2.1 MeV>

The additional examples of functionality are nice, too!

What's the policy on PR approvals, @klieret? Is one approval sufficient to merge?

[eduardo-rodrigues]

This has been approved a while back and a no-brainer. Merging at this point :-).

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