Fix incorrect command line example in Quick Start section

[saiqulhaq]

Problem:

The README documentation was incomplete regarding usage patterns for the strands command, particularly when combining piped input with additional command arguments.

Solution:

• Updated Quick Start section to show the working combined usage pattern
• Enhanced Usage Patterns section to document all three supported input methods:
  1. Direct command arguments only
  2. Piped input only
  3. Combined piped input with additional instructions (requires BYPASS_TOOL_CONSENT=true)
• Clarified that combining piped input with command arguments requires setting BYPASS_TOOL_CONSENT=true to bypass tool confirmation prompts

Testing:

• ✅ Verified strands "instruction" works (direct command only)
• ✅ Verified cat agent-spec.txt | strands "Build a specialized agent based on these specifications" works when BYPASS_TOOL_CONSENT=true

Changes:

• Added working example of combined usage in Quick Start section
• Expanded Usage Patterns section with comprehensive documentation
• Documented the BYPASS_TOOL_CONSENT requirement for combined usage

Type of Change

• ✅ Documentation improvement
• ✅ Clarification of existing functionality

[saiqulhaq]

I will update the README again
because using pipe | causes an error
This agent can not write any file because it can not accept confirmation (y/n)