Add lug batch3 (#3005)
Add lug batch3 (#3005)

* fix typos in lug sentences

* added cc0 new luganda batch of sentences

* updated the sentence words

* New 7117 sentences 98% error ratio from QA source:community
common-voice/common-voice,common-voice/common-voice,common-voice/common-voice,common-voice/common-voice