v3.1.0

What's Changed

• Main into staging by @iamzoltan in #1190
• W2D2 first commit for course book PR by @rdgao in #1189
• Fixing the solutions syntax for automated parsing by @rdgao in #1192
• removed manual solution markdown, added notimplemented, and fixed discrepancies by @rdgao in #1194
• Staging by @iamzoltan in #1191
• added bilibili link, fixed title by @marius10p in #1193
• Main to Staging by @iamzoltan in #1195
• Staging by @iamzoltan in #1196

Full Changelog: v3.0.4...v3.1.0