add h2s remove copied output, ascii filenames

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diff --git a/help/suffixes_drop.md b/help/suffixes_drop.md
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+*View this file with results and syntax highlighting [here](https://mlochbaum.github.io/BQN/help/suffixes_drop.html).*
+
+# Down Arrow (`↓`)
+    
+## `↓ 𝕩`: Suffixes
+    
+Suffixes of array `𝕩` along its first axis.
+    
+           ↓ 1‿2‿3‿4
+
+           a ← 3‿3 ⥊ ↕9
+
+           ↓ a
+
+    
+    
+## `𝕨 ↓ 𝕩`: Drop
+    
+For each integer in `𝕨`, drop that many elements from the beginning of each dimension of `𝕩`.
+    
+Negative numbers drop from the end.
+    
+           3 ↓ 1‿3‿5‿67
+
+           a ← 4‿4 ⥊ ↕16
+
+           3‿3 ↓ a
+
+           5‿5 ↓ a
+
+
+           3‿¯3 ↓ a
+
+