legacy 'v1' OSR hardware last update before switch to v2

What's Changed

• fix: list nesting by @sethfischer in #310
• fix: link to PCB files directory by @sethfischer in #314
• Unix line endings by @sethfischer in #320
• Update calibration.md by @ericjunkins in #333
• Remove part S25 from parts list by @sethfischer in #331
• Part number emphasis by @sethfischer in #326
• Fix heading syntax by @sethfischer in #328
• fix: path to head assembly 3d parts by @sethfischer in #319
• Spelling corrections by @sethfischer in #337
• Add soldering iron to list of required tools by @sethfischer in #336
• Remove duplicate parts S28 and S33 from parts list by @sethfischer in #335
• Use relative paths for images by @sethfischer in #345
• Fix tools table reference by @sethfischer in #344
• Fix Kitspace BOM Arduino shield connector J1 by @sethfischer in #342
• Feat/jpl rover info by @ericjunkins in #346
• Cleanup of main readme, remove digikey BOM and amazon list by @Achllle in #283
• Changes for laser-cut side plates by @dcschooley in #353
• Update master_parts_list_raw.csv by @JoshSharpe in #351
• Fix screw reference in wheel_assembly by @Achllle in #356
• Achllle/iss357 by @Achllle in #358
• S15 D-shaft add length by @Achllle in #355
• Fix part ref 3D printed PVC clamping hub (top) by @sethfischer in #339
• Adding Paddy-Rover to the Builder's Gallery by @apollokit in #366
• Format Markdown by @sethfischer in #363
• Update master_parts_list_raw.csv by @vharavu in #379
• Adding Roverto to the OSR gallery! by @toebes in #378
• Add Sinuhe's and Alex' builds by @Achllle in #365
• USAi Labs AUDACITY by @JHPHELAN in #373
• builders_gallery --> README.md by @Achllle in #380
• Mention new version, remove tapatalk, minor fixes by @Achllle in #381
• Build site with MkDocs (reathedocs theme) by @sethfischer in #360
• Bump pymdown-extensions from 9.2 to 10.0 by @dependabot in #390

New Contributors

• @JoshSharpe made their first contribution in #351
• @vharavu made their first contribution in #379
• @toebes made their first contribution in #378
• @JHPHELAN made their first contribution in #373
• @dependabot made their first contribution in #390

Full Changelog: v3.0.0...v3.1.0

Date	Hardware Version	Software Version
July 1, 2021	v3.0.0	v3.0.0
Sep 1, 2023	v3.1.0	ROS1 v3.1.0
Sep 1, 2023	v4.0.0	ROS2 v4.0.0