readme: fix status badge alignment

[KevFan]

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[codecov-commenter]

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Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 85.21%. Comparing base (d7cd780) to head (26e4978).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #153      +/-   ##
==========================================
+ Coverage   84.20%   85.21%   +1.00%     
==========================================
  Files          19       19              
  Lines         994      994              
==========================================
+ Hits          837      847      +10     
+ Misses        101       96       -5     
+ Partials       56       51       -5     

Flag	Coverage Δ
integration	79.57% <ø> (+1.40%)	⬆️
unit	66.51% <ø> (ø)

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Components	Coverage Δ
api/v1alpha1 (u)	100.00% <ø> (ø)
pkg/helpers (u)	83.87% <ø> (ø)
pkg/log (u)	94.73% <ø> (ø)
pkg/reconcilers (u)	74.67% <ø> (ø)
pkg/limitador (u)	98.11% <ø> (ø)
controllers (i)	76.00% <ø> (+3.33%)	⬆️
pkg/upgrades	88.88% <ø> (ø)

see 1 file with indirect coverage changes