Dedicated AoC page and graph with number of solutions

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+*View this file with results and syntax highlighting [here](https://mlochbaum.github.io/BQN/community/aoc.html).*
+
+# Advent of Code
+
+[Advent of Code 2021](https://adventofcode.com/2021) saw great participation by the BQN community, with a total of 225 solutions published by 22 programmers. They can be found in these repositories:
+
+<center>
+
+[Raghu Ranganathan](https://github.com/razetime/AOC2021-BQN) •
+[dzaima](https://github.com/dzaima/aoc/tree/master/2021/BQN) •
+[Hannu Hartikainen](https://github.com/dancek/bqn-advent2021) •
+[frasiyav](https://github.com/frasiyav/AoC2021) •
+[Leah Neukirchen](https://github.com/leahneukirchen/adventofcode2021) •
+[Antti Keränen](https://github.com/Detegr/aoc2021) •
+[Caleb Quilley](https://gitlab.com/icen/aoc21) •
+[Alex Dikelsky](https://github.com/AlexDikelsky/puzzles/tree/main/advent_of_code/advent_2021) •
+[Andrey Popp](https://github.com/andreypopp/aoc2021) •
+[Johnny](https://github.com/JohnnyJayJay/adventofcode-21) •
+[Ben Dean](https://github.com/bddean/aoc-2021) •
+[Alvin Voo](https://github.com/alvinvoo/aoc2021) •
+[Josh Holland](https://git.sr.ht/~jshholland/adventofcode/tree/master/item/2021) •
+[Alastair Williams](https://github.com/alephno/aoc2021/tree/main/BQN) •
+[Olodus](https://github.com/Olodus/advent_of_code2021) •
+[Aren Windham](https://github.com/arwn/aoc2021) •
+[Dimitri Lozeve](https://github.com/dlozeve/aoc2021) •
+[Alexander Wood](https://github.com/knightzmc/advent-of-code-2021) •
+[Mathias Magnusson](https://github.com/mathiasmagnusson/advent-of-code-21) •
+[m-lima](https://github.com/m-lima/advent-of-code-2021) •
+[Dunya Kirkali](https://github.com/dunyakirkali/aoc.bqn/tree/main/2021) •
+[Benjamin Applegate](https://github.com/Camto/Advent-of-Code-2021/tree/master/BQN)
+
+</center>
+
+In addition to these, Leah wrote two blog posts explaining her solutions for [day 6](https://leahneukirchen.org/blog/archive/2021/12/counting-lanternfish-with-bqn-and-linear-algebra.html) and [day 9](https://leahneukirchen.org/blog/archive/2021/12/surveying-lava-basins-with-bqn-and-fixpoints.html).
+
+The number of solutions for each of the 25 days is plotted below, along with totals from AoC's [stats page](https://adventofcode.com/2021/stats). The BQN solutions are scaled to be visible here: there are 6839 times more valid AoC submissions than published BQN solutions overall.
+
+<!--GEN
+aoc ← 212619‿177297‿155605‿100935‿88219‿88679‿83481‿74615‿68643‿61663‿53952‿47051‿47966‿48138‿37624‿30770‿30625‿21869‿14145‿20024‿22761‿18378‿12258‿9212‿12204
+bqn ← 19‿14‿18‿12‿13‿15‿15‿8‿12‿9‿9‿7‿9‿8‿8‿5‿7‿6‿4‿7‿6‿4‿2‿4‿4
+
+width ← 256
+pad   ← 40‿40
+pad1  ← 40‿10+pad
+
+pa ← At "class=Paren|stroke=currentColor"
+pc ← At "class=red|r=4"
+rc ← At "class=code|stroke-width=1|rx=6"
+gr ← "g" At "stroke-width=1|font-size=13px|text-anchor=end|fill=currentColor"
+Path ← "path" Elt ⊣∾"d"⋈⊢
+
+col ← "class"⊸⋈¨"red"‿"green"
+lab ← "Solutions in:"‿"Anything"‿"BQN"
+win ← ⌈´¨ pts ← <∘∾˘ xy ← ⍉> ((↕≠)⋈÷⟜(+´))¨ aoc‿bqn
+ar  ← ÷2
+dim ← width (⊣≍×) ar
+Scale ← ¬⌾(1⊸⊑) ÷⟜win
+line ← (/≠¨⊏xy) ⊔ FmtNum ⍉> dim×Scale pts
+((-pad1÷2)∾dim+pad1) SVG gr Enc ∾⥊¨ ⟨
+  <"rect" Elt rc∾(Pos-pad÷2)∾"width"‿"height"≍˘FmtNum dim+pad
+  ((col∾¨⊢)⌾(1⊸↓)(Pos(⊑dim)⊸⋈)¨18×0.5+↕3) "text"⊸Attr⊸Enc¨ lab
+  ("g" At "text-anchor=middle|opacity=0.8") Enc "text"⊸Attr⊸Enc˜´¨ ⟨
+    ⟨"day", "dy"‿"1em"∾Pos dim×0.5‿1⟩
+    ⟨"count", "transform"‿"rotate(-90)"∾"dy"‿"-0.35em"∾Pos ⌽dim×0‿¯0.5⟩
+  ⟩
+  pa⊸Path¨ ((0⊸≤∧≤⟜1)/·<∘∾˘("M "⊸∾˘"VH")∾¨·FmtNum dim(×∾˘⌽∘⊣)(=⌜˜↕2)⊸×) Scale 0
+  col ≍⟜"style"‿"fill:none"⊸Path⟜('M'⌾⊑∘∾·⥊ "L "∾¨⎉1⊢)¨ line
+⟩
+-->
+
+The BQN counts fall off much less than the average. Most likely this is because programmers who decide to try AoC in a crazy new language like BQN tend to be more committed to the task, but BQN also has to meet some minimum bar to enable these crazy people to continue.
+
+Just how okay is BQN? Further discussion to come.