create index- and base html files

[VladaAlek]

User Story

As a product owner I can see two html files so that I can testify their functionality.

Acceptance Criteria

• [x] AC 1 two html files are created
• [x] AC 2 two html files are validated
• [ ] AC 3
• [ ] AC 4

Tasks

• [x] T1 create two html files
• [x] T2 validate two html files
• [ ] T3
• [ ] T4

[VladaAlek]

Addition: add wireframe to Readme.md file

Addition: use "block content" to connect two files!

[VladaAlek]

Do additional checks why the validator doesn`t accept as a valid code