Capitalise credits section of the Readme.md file

[komputarist]

The bullet points in Credits section of the quran_android Readme file starts with smaller letters, this can be made better by capitalising the first word. Example

• madani images from quran images project on github.

Can be written as

• Madani images from quran images project on github.

[komputarist]

Kindly assign this issue to me for a quick fix

[ahmedre]

Sure feel free JazakumAllah khairan