Added SELECT2_THEME settings

[CleitonDeLima]

Resolve: #101

[codecov]

Codecov Report

Merging #103 (1f042f4) into master (5a835f3) will decrease coverage by 0.39%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #103      +/-   ##
==========================================
- Coverage   99.58%   99.18%   -0.40%     
==========================================
  Files           7        7              
  Lines         241      246       +5     
==========================================
+ Hits          240      244       +4     
- Misses          1        2       +1     

Impacted Files	Coverage Δ
django_select2/conf.py	100.00% <100.00%> (ø)
django_select2/forms.py	99.44% <100.00%> (-0.56%)	⬇️
django_select2/__init__.py	100.00% <0.00%> (ø)

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[codingjoe]

Pretty much perfect, thanks @CleitonDeLima, very impressive.

[codingjoe]

THX 👍

[GorlikItsMe]

Hi. Can someone make an example of how to change the theme in documentation?

[codingjoe]

Excellent idea. @CleitonDeLima would you do the honors?

[CleitonDeLima]

Hi @GorlikItsMe

@codingjoe , documentation is not generated through docstrings?
I remember adding some comments about it.

[GorlikItsMe]

https://django-select2.readthedocs.io/en/latest/django_select2.html#django_select2.conf.Select2Conf.CSS

SELECT2_CSS AND SELECT2_JS are
But not SELECT2_THEME

[CleitonDeLima]

SELECT2_CSS AND SELECT2_JS are But not SELECT2_THEME

see here
I don't think the documentation has been updated yet.