HDDS-14734. Fix false positive spellcheck errors

[ptlrs]

What changes were proposed in this pull request?

The spelling.sh script checks if the filenames are valid.

When running the script manually in a dev environment, the script erroneously flags bad filenames due to the presence of unknown words in the path.

The canonical path should not be validated. Only the path from the root of the project should be validated.

This PR removes the root file path prefix when validating the path names

Before:

rpatel@GQ2V5HK6NX scripts % find "$root"/docs "$root"/src/pages                    
/Users/rpatel/Github/ozone-site/docs
/Users/rpatel/Github/ozone-site/docs/07-system-internals
/Users/rpatel/Github/ozone-site/docs/07-system-internals/02-data-operations
/Users/rpatel/Github/ozone-site/docs/07-system-internals/02-data-operations/04-hsync.md
/Users/rpatel/Github/ozone-site/docs/07-system-internals/02-data-operations/02-read.md
/Users/rpatel/Github/ozone-site/docs/07-system-internals/02-data-operations/03-delete.md
/Users/rpatel/Github/ozone-site/docs/07-system-internals/02-data-operations/README.mdx
/Users/rpatel/Github/ozone-site/docs/07-system-internals/02-data-operations/01-write.md

Checking document content...
CSpell: Files checked: 655, Issues found: 0 in 0 files.

Checking file names...
File%2520Name:1:8       - Unknown word (rpatel)     -- /Users/rpatel/Github/ozone-site/docs
File%2520Name:2:8       - Unknown word (rpatel)     -- /Users/rpatel/Github/ozone-site/docs
File%2520Name:3:8       - Unknown word (rpatel)     -- /Users/rpatel/Github/ozone-site/docs
File%2520Name:4:8       - Unknown word (rpatel)     -- /Users/rpatel/Github/ozone-site/docs
File%2520Name:5:8       - Unknown word (rpatel)     -- /Users/rpatel/Github/ozone-site/docs
CSpell: Files checked: 1, Issues found: 5 in 1 file.

Spell check failed. See CONTRIBUTING.md for help fixing false positive spelling errors:
https://github.com/apache/ozone-site/blob/master/CONTRIBUTING.md#spelling

Process finished with exit code 1

After:

rpatel@GQ2V5HK6NX scripts % find "$root"/docs "$root"/src/pages | sed "s|^$root/||" 
docs
docs/07-system-internals
docs/07-system-internals/02-data-operations
docs/07-system-internals/02-data-operations/04-hsync.md
docs/07-system-internals/02-data-operations/02-read.md
docs/07-system-internals/02-data-operations/03-delete.md
docs/07-system-internals/02-data-operations/README.mdx
docs/07-system-internals/02-data-operations/01-write.md

/bin/zsh /Users/rpatel/Github/ozone-site/.github/scripts/spelling.sh
Checking document content...
CSpell: Files checked: 655, Issues found: 0 in 0 files.

Checking file names...
CSpell: Files checked: 1, Issues found: 0 in 0 files.

Process finished with exit code 0

What is the link to the Apache Jira?

https://issues.apache.org/jira/browse/HDDS-14734

How was this patch tested?

CI: https://github.com/ptlrs/ozone-site/actions/runs/22456055037

[errose28]

Thanks for fixing this @ptlrs.

[jojochuang]

Merged. Thanks @ptlrs @errose28

[ptlrs]

Thanks for the reviews @errose28 @jojochuang