docs: add GitNexus to competitive analysis and README

[carlos-alm]

Summary

• Replace glimpse with GitNexus in the README feature comparison table and "How other tools compare" section
• Add GitNexus as Bump tree-sitter-python from 0.23.6 to 0.25.0 #7 (score 4.0) in COMPETITIVE_ANALYSIS.md with full scoring breakdown and "vs GitNexus" analysis
• Renumber all subsequent ranking entries across Tier 1, Tier 2, and scoring breakdown tables

Test plan

• Verify README markdown tables render correctly on GitHub
• Verify COMPETITIVE_ANALYSIS.md ranking numbers are sequential
• Confirm all GitNexus links point to the correct repo

[greptile-apps]

Greptile Summary

Replaced glimpse with GitNexus in README comparison table and added GitNexus as #7 (score 4.0) in COMPETITIVE_ANALYSIS.md with full scoring breakdown and competitive analysis section. All subsequent entries were renumbered across all tables.

Key changes:

• README: GitNexus now appears in feature comparison table with capabilities marked (9 languages, semantic search, MCP support, git diff impact) and in "How other tools compare" section with description of its 6-phase pipeline approach
• COMPETITIVE_ANALYSIS.md: GitNexus inserted at position Bump tree-sitter-python from 0.23.6 to 0.25.0 #7, shifting @optave/codegraph from fix: rewrite v1.4.0 changelog and add license scan allowlist #15 to feat: multi-repo MCP with global registry (Phase 2.5) #16. Scope updated from 135+ to 136+ tools evaluated, 80+ to 81+ ranked
• New "vs GitNexus" section added explaining precomputed structural intelligence, clustering/process tracing, hybrid search, and multi-file coordinated rename capabilities
• GitNexus added to community detection and execution flow tracing feature gap sections

Confidence Score: 4/5

• Documentation-only PR is safe to merge with one minor numbering issue
• Score reflects documentation-only changes with consistent content additions across files, but docs: update performance benchmarks #59 is missing in the Tier 2 ranking table creating a numbering gap
• COMPETITIVE_ANALYSIS.md needs correction for missing entry docs: update performance benchmarks #59 in the Tier 2 table

Important Files Changed

Filename	Overview
COMPETITIVE_ANALYSIS.md	Added GitNexus as #7, renumbered all entries - has one numbering skip (#59 missing)
README.md	Replaced glimpse with GitNexus in feature comparison table and "How other tools compare" section

_{Last reviewed commit: 5a298ed}

[greptile-apps]

_{2 files reviewed, 1 comment}

_{Edit Code Review Agent Settings | Greptile}

[greptile-apps]

Entry #59 is missing in the renumbering - the list jumps from #58 directly to #60