docs:cdiwadkar16-patch-4-15 - minor stylistic changes

Rewrote some sentences for readability.

docs:cdiwadkar16-patch-4-14 - changes for taos_use_result

Changed to: "In the above sample, `print_result` is used to simplify the printing of the result set. It is similar to `taos_use_result`"

fix: fixed a compatibility bug between 2.4 and 2.6

docs:cdiwadkar16-patch-4-13 - several

Stylistic changes.
Clarifying changes.
Removed reference to taos_use_result since it is not mentioned in code snippet.

docs: refine description about firewall

maxVgroupsPerDb 参数添加默认值及其描述

docs:cdiwadkar16-patch-4-12 - minor changes

docs/cdiwadkar16-patch-4-11 - minor changes

docs:cdiwadkar16-patch-4-10 - grammar change

docs:cdiwadkar16-patch-4-9 - spelling change

docs:cdiwadkar16-patch-4-8 - minor updates

docs:cdiwadkar16-patch-4 - several changes

docs:cdiwadkar16-patch-4 - best practices and explicit clarification

docs: grammar and formatting: fault tolerance

docs: grammar and phrasing: admin diagnostics

docs: grammar: admin perf optimization

docs: phrasing: admin monitor

Docs: grammar: manage connections

docs: grammar: admin import

docs: grammar: user management

Minor changes for spelling and style.

Stylistic and grammar changes.

Grammar changes.

Spelling correction.

Spelling correction
Stylistic changes

Some stylistic changes.
Some clarifying changes.

Added best practices for firewall and data protections.
Added explicit hostnames (fqdn) in cluster set up examples for clarity.

Minor grammar, edits, and phrasing for the Admin > Problem Diagnostics page.

Grammar and minor edits for Admin > Performance Optimization page

Phrasing for the Admin > TDengine Monitoring page

Minor grammar edits to the Admin > Manage connections page

Minor grammar updates to the Admin > Data Import page.

Minor grammar changes for the User Management page

Minor grammar and formatting for the Fault Tolerance & Disaster Recovery Page