fix macro docs example
fix macro docs example

benpptung/swig,gold3bear/swig,CuteSephiroth/swig,mrazvan92/swig-template-callback,mrazvan92/swig-async,zongkelong/swig,DragWeb/swig,gitoneman/swig,genify/swig,zetlen/swig,notthetup/swig,jerrylin1002/swig,gogobook/swig,gitoneman/swig,gogobook/swig,jerrylin1002/swig,xiaoyang2022/swig,cgvarela/swig,Thunf/swiger,CuteSephiroth/swig,paularmstrong/swig,mrazvan92/swig-async,zetlen/swig,mahdaen/swig,zongkelong/swig,mrazvan92/swig-template-callback,cgvarela/swig,jrvldam/swig,Lochlan/swig,notthetup/swig,jrvldam/swig,cwhatley/swig,Thunf/swiger,genify/swig,cwhatley/swig,mahdaen/swig,cwhatley/swig,mrazvan92/swig-template-callback,mrazvan92/swig-async,Lochlan/swig,xiaoyang2022/swig,DragWeb/swig,gogobook/swig,mahdaen/swig,CuteSephiroth/swig,paularmstrong/swig,jerrylin1002/swig,Lochlan/swig,benpptung/swig,zongkelong/swig,cgvarela/swig,gold3bear/swig,genify/swig,xiaoyang2022/swig,gold3bear/swig,notthetup/swig,zetlen/swig,jrvldam/swig,paularmstrong/swig,DragWeb/swig,gitoneman/swig,Thunf/swiger,benpptung/swig