Docs: Corrected typo in the basics of PE page, maths section.

I corrected a small typo in the basics of PE page, maths section. The parenthesis containing the squared exponent should read (y_i - (t_i * m + c)) instead of (y_i - (t_i * x + c)) for a model H defined by y = m*x + c.

changed title from Corrected typo in the basics of PE page, maths section. to Docs: Corrected typo in the basics of PE page, maths section.

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changed milestone to %0.3.5

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Whoever has write access please merge.

Will do. Thanks for catching and correcting this @sumeet.kulkarni!

mentioned in commit 3d401262

merged

No problem, this was a good exercise for me to revise how to pull, commit and merge changes in git. I just noticed the same typo exists two equations down (in the log-likelihood expression) which I did not catch before. Is it easier for you to make the change?