Update entry points titles

[yuriy-fix]

Connected to https://github.com/vaadin/components-team-tasks/issues/376

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This change is 

[coveralls]

Pull Request Test Coverage Report for Build 1117

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 100.0%

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Totals
Change from base Build 1113:	0.0%
Covered Lines:	6
Relevant Lines:	6

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💛 - Coveralls

[platosha]

Reviewable status: 0 of 1 files reviewed, 4 unresolved discussions (waiting on @YuriyVaadin)

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README.md, line 80 at r1 (raw file):

Vaadin components use the Lumo theme by default.

To use Material theme, import the correspondent file from `material` folder.

BTW the Material theme.

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README.md, line 84 at r1 (raw file):

## Entry points

  Unstyled component.

Let us remove unstyled components from this list?

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README.md, line 88 at r1 (raw file):

- `src/component-name.html`

  Component with Lumo theme.

Colons : would make more sense than the dots . in the end

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README.md, line 88 at r1 (raw file):

- `src/component-name.html`

  Component with Lumo theme.

The component, the Lumo theme

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README.md, line 91 at r1 (raw file):

- `theme/lumo/component-name.html`

  Component with Material theme.

The component, the Material theme

[yuriy-fix]

Reviewable status: 0 of 1 files reviewed, 4 unresolved discussions (waiting on @YuriyVaadin)

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README.md, line 80 at r1 (raw file):

Previously, platosha (Anton Platonov) wrote…

BTW the Material theme.

Updated.

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README.md, line 84 at r1 (raw file):

Previously, platosha (Anton Platonov) wrote…

Let us remove unstyled components from this list?

Removed.

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README.md, line 88 at r1 (raw file):

Previously, platosha (Anton Platonov) wrote…

Colons : would make more sense than the dots . in the end

Added.

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README.md, line 88 at r1 (raw file):

Previously, platosha (Anton Platonov) wrote…

The component, the Lumo theme

Updated.

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README.md, line 91 at r1 (raw file):

Previously, platosha (Anton Platonov) wrote…

The component, the Material theme

Updated.

[platosha]

Reviewed 1 of 1 files at r1, 1 of 1 files at r2.
Reviewable status: complete! all files reviewed, all discussions resolved

[web-padawan]

Reviewed 1 of 1 files at r2.
Reviewable status: complete! all files reviewed, all discussions resolved