tools/format: format markdown files with prettier

.prettierrc.json

@@ -0,0 +1,3 @@
+{
+  "proseWrap": "always"
+}

README.md

@@ -2,8 +2,7 @@
 
 | **Linux & Mac** | **Windows** |
 |:---------------:|:-----------:|
-| [![Travis](https://travis-ci.com/denoland/deno.svg?branch=master)](https://travis-ci.com/denoland/deno) | [![Appveyor](https://ci.appveyor.com/api/projects/status/yel7wtcqwoy0to8x?branch=master&svg=true)](https://ci.appveyor.com/project/deno/deno) |
+| [![][tci badge]][tci link] | [![][avy badge]][avy link] |
-
 
 
 ## A secure TypeScript runtime built on V8
@@ -152,3 +151,9 @@ Env vars: `DENO_BUILD_MODE`, `DENO_BUILD_PATH`, `DENO_BUILD_ARGS`.
 5. Make sure `./tools/lint.py` passes.
 6. Send a pull request.
 7. Sign the [CLA](https://cla-assistant.io/denoland/deno), if you haven't already.
+
+<!-- prettier-ignore -->
+[avy badge]: https://ci.appveyor.com/api/projects/status/yel7wtcqwoy0to8x?branch=master&svg=true
+[avy link]: https://ci.appveyor.com/project/deno/deno
+[tci badge]: https://travis-ci.com/denoland/deno.svg?branch=master
+[tci link]: https://travis-ci.com/denoland/deno

tools/format.py

@@ -28,9 +28,14 @@ for fn in ["BUILD.gn", ".gn"] + find_exts("build_extra", ".gn", ".gni"):
 # TODO(ry) Install yapf in third_party.
 run(["yapf", "-i"] + glob("tools/*.py") + find_exts("build_extra", ".py"))
 
-run(["node", prettier, "--write"] + find_exts("js/", ".js", ".ts") +
+# yapf: disable
-    find_exts("tests/", ".js", ".ts") + find_exts("website/", ".js", ".ts") +
+run(["node", prettier, "--write"] +
-    ["rollup.config.js", "tsconfig.json", "tslint.json"])
+    ["rollup.config.js"] + glob("*.json") + glob("*.md") +
+    find_exts(".github/", ".md") +
+    find_exts("js/", ".js", ".ts", ".md") +
+    find_exts("tests/", ".js", ".ts", ".md") +
+    find_exts("website/", ".js", ".ts", ".md"))
+# yapf: enable
 
 # Requires rustfmt 0.8.2 (flags were different in previous versions)
 run(["rustfmt", "--config-path", rustfmt_config] + find_exts("src/", ".rs"))