Improved and fixed twig reference
Updating component usage to use composer require
Adding details about a specific version
feature #4425 Updating component usage to use composer require (weaverryan)

This PR was merged into the 2.3 branch.

Discussion
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Updating component usage to use composer require

| Q             | A
| ------------- | ---
| Doc fix?      | yes
| New docs?     | no
| Applies to    | 2.3+
| Fixed tickets | n/a

Hi guys!

This shows using the new `composer require` command instead of manually updating `composer.json`. It shortens and simplifies things quite a bit :grinning:

Thanks!

Commits
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d64fae2 Adding details about a specific version
8a50c9c Updating component usage to use composer require
minor #4313 Improved and fixed twig reference (WouterJ)

This PR was merged into the 2.3 branch.

Discussion
----------

Improved and fixed twig reference

| Q   | A
| --- | ---
| Doc fix? | yes
| New docs? | yes
| Applies to | 2.3+
| Ficket tickets | #4301

Removed the ugly looking tables and added some more details.

Commits
-------

ad6b084 Improved and fixed twig reference
Merge branch '2.3' into 2.5

* 2.3:
  Adding details about a specific version
  Updating component usage to use composer require
  Improved and fixed twig reference

Conflicts:
	reference/twig_reference.rst