Release v0.5.1

What's Changed

• fix: Correctly catches and raises errors from tw cli by @adamrtalbot in #183
• Alt find yaml files recursively by @ejseqera in #186
• Recursively find yaml files in directories by @adamrtalbot in #184
• Use params file for environment variables by @adamrtalbot in #182
• Draft: add support for a variables file as input for templating by @ejseqera in #181
• fix: support for multiple cli args provided via cli by @ejseqera in #187
• Document use of environment variables in the README.md by @adamrtalbot in #189
• fix: parsing of vars in input file with existing env by @ejseqera in #188
• Fix typo in docs by @ejseqera in #191
• fix: catch and handle all non-zero exit codes by @ejseqera in #195
• Clean up traceback returned from info command error by @ejseqera in #196

Full Changelog: v0.5.0...v0.5.1