added getting_started URL redirection

.drone.yml

@@ -20,7 +20,7 @@ steps:
   - export COVERALLS_PULL_REQUEST=$DRONE_PULL_REQUEST
   - apt-get -y update
   - apt-get -y install libboost-all-dev doxygen mkdocs graphviz zlib1g-dev gcc clang make cmake python3 python3-pip git openssl libssl-dev
-  - pip3 install mkdocs-material pyyaml --no-input
+  - pip3 install mkdocs-material mkdocs-redirects pyyaml --no-input
   - git clone https://github.com/CrowCpp/cpp-coveralls.git
   - cd cpp-coveralls
   - pip3 install . --no-input
@@ -114,7 +114,7 @@ steps:
   - export TRAVIS_JOB_ID=$DRONE_BUILD_NUMBER
   - apt-get -y update
   - apt-get -y install libboost-all-dev doxygen mkdocs graphviz zlib1g-dev gcc clang make cmake python3 python3-pip git openssl libssl-dev
-  - pip3 install mkdocs-material pyyaml --no-input
+  - pip3 install mkdocs-material mkdocs-redirects pyyaml --no-input
   - git clone https://github.com/CrowCpp/cpp-coveralls.git
   - cd cpp-coveralls
   - pip3 install . --no-input

mkdocs.yml

@@ -69,7 +69,12 @@ extra:
           link: https://github.com/crowcpp/crow
         - icon: fontawesome/brands/gitter
           link: https://gitter.im/crowfork/community
-
+
+plugins:
+    - redirects:
+        redirect_maps:
+            'getting_started/setup/': 'getting_started/setup/linux.md'
+
 extra_css:
     - 'stylesheets/colors.css'
     - 'stylesheets/latofonts.css'