Big Change Update

uBlock0.chromium/js/wasm/README.md

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+### For code reviewers
+
+All `wasm` files in that directory where created by compiling the
+corresponding `wat` file using the command (using `hntrie.wat`/`hntrie.wasm`
+as example):
+
+    wat2wasm hntrie.wat -o hntrie.wasm
+
+Assuming:
+
+- The command is executed from within the present directory.
+
+### `wat2wasm` tool
+
+The `wat2wasm` tool can be downloaded from an official WebAssembly project:
+<https://github.com/WebAssembly/wabt/releases>.
+
+### `wat2wasm` tool online
+
+You can also use the following online `wat2wasm` tool:
+<https://webassembly.github.io/wabt/demo/wat2wasm/>.
+
+Just paste the whole content of the `wat` file to compile into the WAT pane.
+Click "Download" button to retrieve the resulting `wasm` file.