Update links in Readme.md

[oerd]

Fixed broken links to algorithms in Readme.md

(Put an X inside the [ ] to denote check mark [X].)

• If creating a new file :

  • added links to it in the README files ?
  • included tests with it ?
  • added description (overview of algorithm, time and space compleixty, and possible edge case) in docstrings ?

• [ X] if done some changes :

  • [X ] wrote short description in the PR explaining what the changes do ?
  • [X ] Fixes Some links in main Readme.md are broken #410 if related to any issue

• other

[coveralls]

Pull Request Test Coverage Report for Build 749

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 1 unchanged line in 1 file lost coverage.
• Overall coverage remained the same at 71.552%

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Files with Coverage Reduction	New Missed Lines	%
algorithms/linkedlist/is_palindrome.py	1	93.33%

Totals
Change from base Build 742:	0.0%
Covered Lines:	4306
Relevant Lines:	6018

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💛 - Coveralls