WildCards Import add documentation

[kentr0w]

What's done:

Added info

[codecov]

Codecov Report

Merging #281 into master will decrease coverage by 0.88%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master     #281      +/-   ##
============================================
- Coverage     82.12%   81.23%   -0.89%     
+ Complexity      976      956      -20     
============================================
  Files            50       50              
  Lines          2534     2510      -24     
  Branches        798      782      -16     
============================================
- Hits           2081     2039      -42     
- Misses          169      190      +21     
+ Partials        284      281       -3     

Flag	Coverage Δ	Complexity Δ
#unittests	81.23% <ø> (-0.89%)	956.00 <ø> (-20.00)

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ	Complexity Δ
.../ruleset/rules/BracesInConditionalsAndLoopsRule.kt	80.35% <0.00%> (-8.93%)	26.00% <0.00%> (-3.00%)
...diktat/ruleset/rules/comments/HeaderCommentRule.kt	80.00% <0.00%> (-8.61%)	27.00% <0.00%> (-9.00%)
...g/cqfn/diktat/ruleset/utils/FunctonASTNodeUtils.kt	70.37% <0.00%> (-2.71%)	0.00% <0.00%> (ø%)
.../org/cqfn/diktat/ruleset/rules/kdoc/KdocMethods.kt	89.24% <0.00%> (-1.28%)	69.00% <0.00%> (ø%)
...kotlin/org/cqfn/diktat/ruleset/rules/FileNaming.kt	8.69% <0.00%> (-0.83%)	2.00% <0.00%> (ø%)
...g/cqfn/diktat/ruleset/rules/kdoc/KdocFormatting.kt	76.35% <0.00%> (-0.52%)	81.00% <0.00%> (ø%)
...n/kotlin/org/cqfn/diktat/ruleset/rules/SortRule.kt	85.93% <0.00%> (-0.22%)	22.00% <0.00%> (ø%)
...tlin/org/cqfn/diktat/ruleset/constants/Warnings.kt	96.38% <0.00%> (-0.09%)	7.00% <0.00%> (-1.00%)
...cqfn/diktat/ruleset/rules/DiktatRuleSetProvider.kt	97.50% <0.00%> (-0.07%)	3.00% <0.00%> (ø%)
...n/kotlin/org/cqfn/diktat/ruleset/utils/PsiUtils.kt	51.35% <0.00%> (ø)	0.00% <0.00%> (ø%)
... and 21 more

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[orchestr7]

let's start writing documentation here as comments to yml file

[orchestr7]

@petertrr @kentr0w @aktsay6

[orchestr7]

Denis, be quick! Fix it and merge

[aktsay6]

lgtm