Fix docs build and add missing benchmarks page (#1017)

* fix mkdocs theme dependency - mkdocs/mkdocs#201

* add missing benchmarks page

.travis.yml

@@ -18,9 +18,7 @@ install:
 - sudo service docker start
 - sleep 5
 - docker version
-- pip install --user mkdocs
-- pip install --user pymdown-extensions
-- pip install --user mkdocs-bootswatch
+- pip install --user -r requirements.txt
 before_script:
 - make validate
 - make binary

mkdocs.yml

@@ -53,3 +53,4 @@ pages:
       - 'Kubernetes': 'user-guide/kubernetes.md'
       - 'Key-value store configuration': 'user-guide/kv-config.md'
       - 'Clustering/HA': 'user-guide/cluster.md'
+  - Benchmarks: benchmarks.md

requirements.txt

@@ -1 +1,3 @@
-mkdocs>=0.9.0
+mkdocs>=0.16.1
+pymdown-extensions>=1.4
+mkdocs-bootswatch>=0.4.0