chore(docs): docs cleanup

chore(docs): change chmod markdown files

chore(docs): update gitignore

Author: claudiahdz

.gitignore

@@ -12,7 +12,6 @@ npm-debug.log
 /docs/.cache/
 /docs/node_modules/
 /man/
-/doc/*/npm-index.md
 /npmrc
 /release/
 /npm-*.tgz
@@ -25,3 +24,4 @@ npm-debug.log
 .nyc_output
 /test/npm_cache*
 /node_modules/.cache
+.DS_Store