ignore pubspec.lock

This is mostly used as a library, not a package

pkgs/markdown/.gitignore

diff --git a/pkgs/markdown/.gitignore b/pkgs/markdown/.gitignore
index 492ac23..282c7f8 100644
--- a/pkgs/markdown/.gitignore
+++ b/pkgs/markdown/.gitignore
@@ -2,3 +2,4 @@
 .packages
 .pub
 packages
+pubspec.lock

pkgs/markdown/pubspec.lock

diff --git a/pkgs/markdown/pubspec.lock b/pkgs/markdown/pubspec.lock
deleted file mode 100644
index ad5b554..0000000
--- a/pkgs/markdown/pubspec.lock
+++ /dev/null
@@ -1,131 +0,0 @@
-# Generated by pub
-# See http://pub.dartlang.org/doc/glossary.html#lockfile
-packages:
-  analyzer:
-    description: analyzer
-    source: hosted
-    version: "0.26.1+3"
-  args:
-    description: args
-    source: hosted
-    version: "0.13.2"
-  async:
-    description: async
-    source: hosted
-    version: "1.3.0"
-  barback:
-    description: barback
-    source: hosted
-    version: "0.15.2+6"
-  charcode:
-    description: charcode
-    source: hosted
-    version: "1.1.0"
-  collection:
-    description: collection
-    source: hosted
-    version: "1.1.2"
-  crypto:
-    description: crypto
-    source: hosted
-    version: "0.9.0"
-  csslib:
-    description: csslib
-    source: hosted
-    version: "0.12.1"
-  glob:
-    description: glob
-    source: hosted
-    version: "1.0.5"
-  html:
-    description: html
-    source: hosted
-    version: "0.12.2"
-  http_multi_server:
-    description: http_multi_server
-    source: hosted
-    version: "1.3.2"
-  http_parser:
-    description: http_parser
-    source: hosted
-    version: "1.0.0"
-  logging:
-    description: logging
-    source: hosted
-    version: "0.11.1+1"
-  matcher:
-    description: matcher
-    source: hosted
-    version: "0.12.0+1"
-  mime:
-    description: mime
-    source: hosted
-    version: "0.9.3"
-  package_config:
-    description: package_config
-    source: hosted
-    version: "0.1.3"
-  path:
-    description: path
-    source: hosted
-    version: "1.3.6"
-  plugin:
-    description: plugin
-    source: hosted
-    version: "0.1.0"
-  pool:
-    description: pool
-    source: hosted
-    version: "1.1.0"
-  pub_semver:
-    description: pub_semver
-    source: hosted
-    version: "1.2.1"
-  shelf:
-    description: shelf
-    source: hosted
-    version: "0.6.3"
-  shelf_static:
-    description: shelf_static
-    source: hosted
-    version: "0.2.3+1"
-  shelf_web_socket:
-    description: shelf_web_socket
-    source: hosted
-    version: "0.0.1+4"
-  source_map_stack_trace:
-    description: source_map_stack_trace
-    source: hosted
-    version: "1.0.4"
-  source_maps:
-    description: source_maps
-    source: hosted
-    version: "0.10.1"
-  source_span:
-    description: source_span
-    source: hosted
-    version: "1.2.0"
-  stack_trace:
-    description: stack_trace
-    source: hosted
-    version: "1.4.2"
-  string_scanner:
-    description: string_scanner
-    source: hosted
-    version: "0.1.4"
-  test:
-    description: test
-    source: hosted
-    version: "0.12.4+7"
-  utf:
-    description: utf
-    source: hosted
-    version: "0.9.0+2"
-  watcher:
-    description: watcher
-    source: hosted
-    version: "0.9.7"
-  yaml:
-    description: yaml
-    source: hosted
-    version: "2.1.5"