Fix param docs for PropertyAccessor read method
[PropertyAccess] Remove trailing periods from doc blocks

Periods were left in place for entries with multiple sentences/statements.
merged branch jmikola/2.2-propertyaccess-docs (PR #7511)

This PR was merged into the 2.2 branch.

Discussion
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[PropertyAccess] Documentation cleanup

| Q             | A
| ------------- | ---
| Fixed tickets | none
| License       | MIT

Resubmission of #7498

Commits
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8aaa6ef [PropertyAccess] Remove trailing periods from doc blocks
d78fec9 Fix param docs for PropertyAccessor read method