Add some protips

lib/overcommit/hook/pre_commit/es_lint.rb

@@ -1,6 +1,16 @@
 module Overcommit::Hook::PreCommit
   # Runs `eslint` against any modified JavaScript files.
   #
+  # Protip: if you have an npm script set up to run eslint, you can configure
+  # this hook to run eslint via your npm script by using the `command` option in
+  # your .overcommit.yml file. This can be useful if you have some eslint
+  # configuration built into your npm script that you don't want to repeat
+  # somewhere else. Example:
+  #
+  #   EsLint:
+  #     enabled: true
+  #     command: ['npm', 'run', 'lint']
+  #
   # @see http://eslint.org/
   class EsLint < Base
     def run

lib/overcommit/hook/pre_commit/execute_permissions.rb

@@ -2,6 +2,16 @@ module Overcommit::Hook::PreCommit
   # Checks for files with execute permissions, which are usually not necessary
   # in source code files (and are typically caused by a misconfigured editor
   # assigning incorrect default permissions).
+  #
+  # Protip: if you have some files that you want to allow execute permissions
+  # on, you can disable this hook for those files by using the `exclude` option
+  # on your .overcommit.yml file. Example:
+  #
+  #   ExecutePermissions:
+  #     enabled: true
+  #     exclude:
+  #       - 'path/to/my/file/that/should/have/execute/permissions.sh'
+  #       - 'directory/that/should/have/execute/permissions/**/*'
   class ExecutePermissions < Base
     def run
       file_modes = {}