docs: fix duplicated word in language server extension guide

[manurella]

Purpose

No related issue was filed for this. It's a duplicated word caught while reading through the language server developer docs. The introduction of docs/language-server/WritingExtendedServices.md reads "we are are going to introduce...", with "are" duplicated. This guide is the primary reference for contributors implementing extended language server services.

Approach

Single-line text edit removing the duplicate word from the introduction paragraph. No code, logic, or behavior changes.

Samples

Not applicable, it's a documentation text fix only, no new or changed samples.

Remarks

Not tied to an existing issue since it's a trivial typo; happy to file one first if that's preferred for future doc-only fixes.

Check List

• Read the Contributing Guide
• Updated Change Log
• Checked Tooling Support (#)
• Added necessary tests
  • Unit Tests
  • Spec Conformance Tests
  • Integration Tests
  • Ballerina By Example Tests
• Increased Test Coverage
• Added necessary documentation
  • API documentation
  • Module documentation in Module.md files
  • Ballerina By Examples

Removed a duplicated word from the language server extension developer guide. This documentation-only change does not affect functionality, APIs, samples, or tests.

• Corrected a duplicated “are” in the introduction to “What is a Service?” in WritingExtendedServices.md.
• Documentation-only change with no impact on code, APIs, behavior, samples, or tests.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 41b09528-3102-46e8-9408-59683599f892

📥 Commits

Reviewing files that changed from the base of the PR and between baf7355 and bc31260.

📒 Files selected for processing (1)

• docs/language-server/WritingExtendedServices.md

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📝 Walkthrough

Walkthrough

The extended service documentation now explains that third parties can bind custom services through an extensible API and extend default LSP behavior.

Changes

Extended service documentation

Layer / File(s)	Summary
Service capability description docs/language-server/WritingExtendedServices.md	Adds clarification about custom service binding and extending default Language Server Protocol behavior.

Estimated code review effort: 1 (Trivial) | ~2 minutes

Suggested reviewers: gimantha, keizer619

Poem

A rabbit hops through docs so bright,
Adding service paths in sight.
Custom bindings now can grow,
LSP extensions flow.
One small line, a clearer flight!

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title is concise and accurately summarizes the documentation typo fix.
Description check	✅ Passed	The description follows the template with Purpose, Approach, Samples, Remarks, and a checklist, and it is detailed enough overall.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 75.09%. Comparing base (3b82c03) to head (bc31260).
⚠️ Report is 143 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff              @@
##             master   #44657      +/-   ##
============================================
+ Coverage     75.03%   75.09%   +0.06%     
- Complexity    58724    59177     +453     
============================================
  Files          3601     3617      +16     
  Lines        227211   228994    +1783     
  Branches      29595    29818     +223     
============================================
+ Hits         170482   171969    +1487     
- Misses        47223    47380     +157     
- Partials       9506     9645     +139     

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