rename and split the installation page

[vanshika622]

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[linux-foundation-easycla]

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[svrnm]

hey @vanshika622 thanks for your interest to contribute to our project, but we have a pending PR already, you're welcome to compare work: #8370

[vanshika622]

hey @vanshika622 thanks for your interest to contribute to our project, but we have a pending PR already, you're welcome to compare work: #8370

Hi! I checked that after creating my PR. No worries — I’ll pick up another issue to work on. Thanks!