brwikimedia: fix import sources

most are not working now


copy format from mxwikimedia / cowikimedia


On second thought, mxwikimedia/cowikimedia are also wrong... fixing
brwikimedia first and other chapters in I2180ce9ff6901174c5cf3f5ca9d

related to Bug 31042

Bug: 58936
Change-Id: I29941e17f7851c5a93d9ddb58dae9a134cc789aa