diff --git a/in/index.rst b/in/index.rst
index f373a75..2002914 100644
--- a/in/index.rst
+++ b/in/index.rst
@@ -36,9 +36,9 @@ RTFD
    public/parted/index
    public/pdftk/index
    public/python3/index
-   public/python3-sphinx/index
    public/rsync/index
    public/smtp/index
+   public/sphinx/index
    public/squashfs-tools/index
    public/systemd/index
    public/tar/index
diff --git a/in/public/python3-sphinx/install.rst b/in/public/python3-sphinx/install.rst
deleted file mode 100644
index 0509b11..0000000
--- a/in/public/python3-sphinx/install.rst
+++ /dev/null
@@ -1,9 +0,0 @@
-*******
-Install
-*******
-
-.. code:: shell
-
-  python3-sphinx
-  python3-sphinx-rtd-theme
-  python3-recommonmark
diff --git a/in/public/python3-sphinx/build.rst b/in/public/sphinx/build.rst
similarity index 100%
rename from in/public/python3-sphinx/build.rst
rename to in/public/sphinx/build.rst
diff --git a/in/public/python3-sphinx/configure.rst b/in/public/sphinx/configure.rst
similarity index 100%
rename from in/public/python3-sphinx/configure.rst
rename to in/public/sphinx/configure.rst
diff --git a/in/public/python3-sphinx/create.rst b/in/public/sphinx/create.rst
similarity index 100%
rename from in/public/python3-sphinx/create.rst
rename to in/public/sphinx/create.rst
diff --git a/in/public/python3-sphinx/index.rst b/in/public/sphinx/index.rst
similarity index 65%
rename from in/public/python3-sphinx/index.rst
rename to in/public/sphinx/index.rst
index a75cd3d..bd1285f 100644
--- a/in/public/python3-sphinx/index.rst
+++ b/in/public/sphinx/index.rst
@@ -1,5 +1,5 @@
-python3-sphinx
-==============
+sphinx
+======
 
 .. toctree::
 
diff --git a/in/public/sphinx/install.rst b/in/public/sphinx/install.rst
new file mode 100644
index 0000000..2af12bc
--- /dev/null
+++ b/in/public/sphinx/install.rst
@@ -0,0 +1,13 @@
+Install
+=======
+
+.. code:: shell
+
+ apt install python3-sphinx
+ apt install python3-sphinx-rtd-theme
+
+* if markdown documents
+
+.. code:: shell
+
+ apt install python3-recommonmark