doc: add eslint-plugin-markdown

* install eslint-plugin-markdown
* add doc/.eslintrc.yaml
* add `<!-- eslint-disable rule -->` or `<!-- eslint-disable -->`
  for the rest of problematic code
* .js files in doc folder added to .eslintignore
* update Makefile and vcbuild.bat

PR-URL: https://github.com/nodejs/node/pull/12563
Refs: https://github.com/nodejs/node/pull/12557#issuecomment-296015032
Reviewed-By: Teddy Katz <teddy.katz@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Timothy Gu <timothygu99@gmail.com>
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>
Reviewed-By: Yuta Hiroto <hello@about-hiroppy.com>

1 files changed, 3 insertions, 7 deletions

diff --git a/doc/api/zlib.md b/doc/api/zlib.md
index 73aa81ede9..340470a4e1 100644
--- a/doc/api/zlib.md
+++ b/doc/api/zlib.md
@@ -151,8 +151,9 @@ From `zlib/zconf.h`, modified to node.js's usage:
 
 The memory requirements for deflate are (in bytes):
 
+<!-- eslint-disable semi -->
 ```js
-(1 << (windowBits + 2)) + (1 << (memLevel + 9));
+(1 << (windowBits + 2)) + (1 << (memLevel + 9))
 ```
 
 That is: 128K for windowBits=15  +  128K for memLevel = 8
@@ -167,12 +168,7 @@ const options = { windowBits: 14, memLevel: 7 };
 
 This will, however, generally degrade compression.
 
-The memory requirements for inflate are (in bytes)
-
-```js
-1 << windowBits;
-```
-
+The memory requirements for inflate are (in bytes) `1 << windowBits`.
 That is, 32K for windowBits=15 (default value) plus a few kilobytes
 for small objects.