diff --git a/docs/mdl_relaxed.rb b/docs/mdl_relaxed.rb
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+# Copyright 2017-present Open Networking Foundation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# markdownlint(mdl) relaxed rules file
+#
+# Rule descriptions:
+#  https://github.com/markdownlint/markdownlint/blob/master/docs/RULES.md
+# Instructions on modifying the rules file:
+#  https://github.com/markdownlint/markdownlint/blob/master/docs/creating_styles.md
+
+# use all rules
+all
+
+# Exclude rule: Header levels should only increment by one level at a time
+exclude_rule 'MD001'
+
+# Indent lists with 4 spaces
+rule 'MD007', :indent => 4
+
+# Exclude rule: Trailing spaces
+exclude_rule 'MD009'
+
+# Don't enforce line length limitations
+exclude_rule 'MD013'
+
+# Allow  ! and ? as trailing punctuation in headers
+rule 'MD026', :punctuation => '.,;:'
+
+# Exclude rule: Multiple spaces after blockquote symbol
+exclude_rule 'MD027'
+
+# Numbered lists should have the correct order
+rule 'MD029', :style => "ordered"
+
+# Exclude rule: Fenced code blocks should be surrounded by blank lines
+exclude_rule 'MD031'
+
+# Exclude rule: Emphasis used instead of a header
+exclude_rule 'MD036'
+
+# Gitbook won't care about multiple blank lines
+exclude_rule 'MD012'