[HUDI-598] Update quick start page

[lamberken]

What is the purpose of the pull request

1. Unify code indent ( 4 -> 2 )
2. Change org.apache.hudi to hudi
3. Fix hudi_ro_table not exists at Delete section

Verify this pull request

Compare changes

• https://hudi.apache.org/docs/quick-start-guide.html
• https://lamber-ken.github.io/docs/quick-start-guide.html

Committer checklist

• Has a corresponding JIRA in PR title & commit

• Commit message is descriptive of the change

• CI is green

• Necessary doc changes done or have another open PR

• For large changes, please consider breaking it into sub-tasks under an umbrella JIRA.

[bhasudha]

@lamber-ken just confirming - were you able to verify the spark.read.format("org.apache.hudi") to spark.read.format"hudi") change ?

I left couple minor comments. Otherwise looks good.

[lamberken]

Hi @bhasudha, I did and verify that "org.apache.hudi" to "hudi" #1054

[lamberken]

hi @bhasudha, all review comments are addressed and fixed. :)

[bhasudha]

hi @bhasudha, all review comments are addressed and fixed. :)

Hi @lamber-ken . I am having some doc changes that pertain to cutting 0.5.1 doc version directory. I ll send those PRs first and later merge this change so that 0.5.1 doc version does not contain newer changes.

The changes here looks okay. I am just waiting on those changes first to go in. Thanks!

[lamberken]

hi @bhasudha, all review comments are addressed and fixed. :)

Hi @lamber-ken . I am having some doc changes that pertain to cutting 0.5.1 doc version directory. I ll send those PRs first and later merge this change so that 0.5.1 doc version does not contain newer changes.

The changes here looks okay. I am just waiting on those changes first to go in. Thanks!

Okay, got. :)

[bhasudha]

Merging this since 0.5.1 doc release is cut.