Turkish Language Support with other typo fixes

• Turkish translate ( @gnwx in #10 )
• fixed typo navigator.md (@hemants1703 in #12 )
• Added Basics and updated existing documents with pagination (@gnwx in #13 )
• Screen properties table has duplicates (@gnwx in #14 )
• Translated bom (@gnwx in #15 )
• Translated classes section (@gnwx in #16 )
• translated conditional section (@gnwx in #17 )
• translated error handling section (@gnwx in #18 )
• typo in exercises section (@gnwx in #19 )
• Translated exercises section (@gnwx in #20 )
• Translated functions section (@gnwx in #21 )
• Translated loops section (@gnwx in #22 )
• Update README.md (@Anuj-Khadka in #23 )
• Update Basics Chapter (@Anuj-Khadka in #24 )
• भाषिक शुद्धिकरण (@codernirdesh in #25 )
• Translated last sections (@gnwx in #26)