doc: remove next

[czy88840616]

remov next text in document

[codecov-io]

Codecov Report

Merging #134 into master will decrease coverage by 0.21%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #134      +/-   ##
==========================================
- Coverage   76.57%   76.35%   -0.22%     
==========================================
  Files          27       23       -4     
  Lines         764      702      -62     
  Branches      114      102      -12     
==========================================
- Hits          585      536      -49     
+ Misses        139      130       -9     
+ Partials       40       36       -4

Impacted Files	Coverage Δ
packages/midway-core/src/decorators/metaKeys.ts	100% <0%> (ø)	⬆️
packages/midway-core/src/decorators/index.ts
...ages/midway-core/src/decorators/providerWrapper.ts
packages/midway-core/src/index.ts
packages/midway-core/src/constants.ts
packages/midway-core/src/utils.ts	83.33% <0%> (+6.86%)	⬆️
packages/midway-core/src/decorators/application.ts	100% <0%> (+22.58%)	⬆️

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[Lellansin]

LGTM