diff --git a/.mergify.yml b/.mergify.yml
index 255276858..5a1e1ff34 100644
--- a/.mergify.yml
+++ b/.mergify.yml
@@ -47,19 +47,19 @@ pull_request_rules:
         add: ["README"]
   - name: "auto add label=Documentation"
     conditions:
-      - files~=^docs/
+      - files~=^doc/
     actions:
       label:
         add: ["Documentation"]
   - name: "auto add label=CI"
     conditions:
-      - files~=^(.circleci/|ci/|.github/|.travis.yml)
+      - files~=^(.circleci/|ci/|.github/|.travis.yml|.travis|env.sh)
     actions:
       label:
         add: ["CI"]
   - name: "auto add label=Installation"
     conditions:
-      - files~=^(tools/|setup.py|setup.sh|env.sh|.travis)
+      - files~=^(tools/|setup.py|setup.sh)
     actions:
       label:
         add: ["Installation"]
diff --git a/docs/images/multi_gpu_speedup.png b/doc/images/multi_gpu_speedup.png
similarity index 100%
rename from docs/images/multi_gpu_speedup.png
rename to doc/images/multi_gpu_speedup.png
diff --git a/docs/images/prosody.jpeg b/doc/images/prosody.jpeg
similarity index 100%
rename from docs/images/prosody.jpeg
rename to doc/images/prosody.jpeg
diff --git a/docs/images/tuning_error_surface.png b/doc/images/tuning_error_surface.png
similarity index 100%
rename from docs/images/tuning_error_surface.png
rename to doc/images/tuning_error_surface.png
diff --git a/docs/src/asr_postprocess.md b/doc/src/asr_postprocess.md
similarity index 100%
rename from docs/src/asr_postprocess.md
rename to doc/src/asr_postprocess.md
diff --git a/docs/src/augmentation.md b/doc/src/augmentation.md
similarity index 100%
rename from docs/src/augmentation.md
rename to doc/src/augmentation.md
diff --git a/docs/src/benchmark.md b/doc/src/benchmark.md
similarity index 100%
rename from docs/src/benchmark.md
rename to doc/src/benchmark.md
diff --git a/docs/src/chinese_syllable.md b/doc/src/chinese_syllable.md
similarity index 100%
rename from docs/src/chinese_syllable.md
rename to doc/src/chinese_syllable.md
diff --git a/docs/src/data_preparation.md b/doc/src/data_preparation.md
similarity index 100%
rename from docs/src/data_preparation.md
rename to doc/src/data_preparation.md
diff --git a/docs/src/dataset.md b/doc/src/dataset.md
similarity index 100%
rename from docs/src/dataset.md
rename to doc/src/dataset.md
diff --git a/docs/src/faq.md b/doc/src/faq.md
similarity index 100%
rename from docs/src/faq.md
rename to doc/src/faq.md
diff --git a/docs/src/getting_started.md b/doc/src/getting_started.md
similarity index 100%
rename from docs/src/getting_started.md
rename to doc/src/getting_started.md
diff --git a/docs/src/install.md b/doc/src/install.md
similarity index 100%
rename from docs/src/install.md
rename to doc/src/install.md
diff --git a/docs/src/ngram_lm.md b/doc/src/ngram_lm.md
similarity index 100%
rename from docs/src/ngram_lm.md
rename to doc/src/ngram_lm.md
diff --git a/docs/src/reference.md b/doc/src/reference.md
similarity index 100%
rename from docs/src/reference.md
rename to doc/src/reference.md
diff --git a/docs/src/released_model.md b/doc/src/released_model.md
similarity index 100%
rename from docs/src/released_model.md
rename to doc/src/released_model.md
diff --git a/docs/src/server.md b/doc/src/server.md
similarity index 100%
rename from docs/src/server.md
rename to doc/src/server.md
diff --git a/docs/src/speech_synthesis.md b/doc/src/speech_synthesis.md
similarity index 100%
rename from docs/src/speech_synthesis.md
rename to doc/src/speech_synthesis.md
diff --git a/docs/src/text_front_end.md b/doc/src/text_front_end.md
similarity index 100%
rename from docs/src/text_front_end.md
rename to doc/src/text_front_end.md