Polish off searching algorithms

[Ruthietta]

• [x] Think about a possibility of algorithm's visualisations to make them easier to understand
• [ ] #6
• [ ] Add cpp implementations for those algorithms first
• [ ] Add README file with table of content and links for algorithms
• [ ] Add badges for last updated variable in README files
• [x] #9
• [x] #10
• [ ] Add new algorithms: Uniform-Cost Search
• [ ] Add new algorithms: Binary Search Tree (BST) Search
• [ ] Add new algorithms: Hash Table Search
• [ ] Add new algorithms: Graph Search
• [ ] Add new algorithms: Best-First Search
• [ ] Add new algorithms: Bidirectional Search
• [ ] Add new algorithms: Iterative Deepening Search

[Ruthietta]

Working right now on the adding the rest of the searching algorithms