diff --git a/README.md b/README.md
index 170383f..239a890 100644
--- a/README.md
+++ b/README.md
@@ -44,7 +44,7 @@ The following procedure can be used for openSUSE Leap 42.1:
 1. Add the repository:
 
    ```
-   $ sudo zypper ar https://download.opensuse.org/repositories/devel:/languages:/python/openSUSE_Leap_42.3/devel:languages:python.repo
+   $ sudo zypper ar https://download.opensuse.org/repositories/devel:/languages:/python/openSUSE_Leap_\$releasever/devel:languages:python.repo
    ```
 
 2. Install it:
@@ -88,31 +88,10 @@ The executable can be found in `.env3/bin/rnginline`.
 
 1. Update your GitHub repository.
 
-2. Convert the official compact version into the XML version with trang:
+2. Change the directory to `geekodoc/rng`.
 
-   ```
-   $ trang geekodoc.rnc geekodoc5.rng
-   ```
-
-3. Create the flat RNG version:
-
-   ```
-   $ rnginline geekodoc5.rng geekodoc5-flat.rng
-   ```
-
-4. Optional: Cleanup and remove unnecessary namespaces:
+3. Run `make`.
 
-   ```
-   $ mv geekodoc5-flat.rng _flat.rng
-   $ xmllint -o geekodoc5-flat.rng --nsclean --format flat.rng
-   $ rm _flat.rng
-   ```
-
-5. Optional: Create the compact version:
-
-   ```
-   $ trang geekodoc5-flat.rng geekodoc5-flat.rnc
-   ```
 
 ## Supporting Vim
 
diff --git a/geekodoc/rng/geekodoc5.sch b/geekodoc/rng/geekodoc5.sch
new file mode 100644
index 0000000..7fd8163
--- /dev/null
+++ b/geekodoc/rng/geekodoc5.sch
@@ -0,0 +1,55 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<s:schema xmlns:s="http://purl.oclc.org/dsdl/schematron" queryBinding="xslt">
+ <s:title>Schematron Schema for GeekoDoc</s:title>
+ <s:p>GeekoDoc Schematron</s:p>
+
+ <s:ns prefix="a" uri="http://relaxng.org/ns/compatibility/annotations/1.0"/>
+ <s:ns prefix="ctrl" uri="http://nwalsh.com/xmlns/schema-control/"/>
+ <s:ns prefix="db" uri="http://docbook.org/ns/docbook"/>
+ <s:ns prefix="html" uri="http://www.w3.org/1999/xhtml"/>
+ <s:ns prefix="its" uri="http://www.w3.org/2005/11/its"/>
+ <s:ns prefix="mml" uri="http://www.w3.org/1998/Math/MathML"/>
+ <s:ns prefix="rng" uri="http://relaxng.org/ns/structure/1.0"/>
+ <s:ns prefix="s" uri="http://purl.oclc.org/dsdl/schematron"/>
+ <s:ns prefix="svg" uri="http://www.w3.org/2000/svg"/> 
+ <s:ns prefix="xlink" uri="http://www.w3.org/1999/xlink"/>
+
+ <s:pattern>
+  <s:title>General Checks</s:title>
+  <s:rule id="spaces-in-xmlid" context="*/@xml:id" see="spaces-in-xmlid">
+   <s:assert test="not(contains(., ' '))">No spaces in xml:id's!</s:assert>
+  </s:rule>
+ </s:pattern>
+
+ <s:pattern id="list-with-title-and-xmlid">
+  <s:title>All lists with a title should have a xml:id</s:title>
+  <s:rule id="itemizedlist-title-and-xmlid" context="db:itemizedlist[db:title]">
+   <s:assert test="@xml:id">an <s:value-of select="local-name()"/> with a title must have a xml:id attribute</s:assert>
+  </s:rule>
+  <s:rule id="orderedlist-title-and-xmlid" context="db:orderedlist[db:title]">
+   <s:assert test="@xml:id">an <s:value-of select="local-name()"/> with a title must have a xml:id attribute</s:assert>
+  </s:rule>
+  <s:rule id="variablelist-title-and-xmlid" context="db:variablelist[db:title]">
+   <s:assert test="@xml:id">an <s:value-of select="local-name()"/> with a title must have a xml:id attribute</s:assert>
+  </s:rule>
+  <s:rule id="procedure-title-and-xmlid" context="db:procedure[db:title]">
+   <s:assert test="@xml:id">a <s:value-of select="local-name()"/> with a title must have a xml:id attribute</s:assert>
+  </s:rule>
+ </s:pattern>
+
+ <s:pattern id="list-checks">
+  <s:title>Checks for amount of child elements in lists</s:title>
+  <s:rule id="procedure-one-step" context="db:procedure">
+   <s:assert test="not(count(db:step) = 1)">A procedure must contain more than one step</s:assert>
+  </s:rule>
+  <s:rule id="orderedlist-one-listitem" context="db:orderedlist">
+   <s:assert test="not(count(db:listitem) = 1)">An orderedlist must contain more than one listitems</s:assert>
+  </s:rule>
+  <s:rule id="itemizedlist-one-listitem" context="db:itemizedlist">
+   <s:assert test="not(count(db:listitem) = 1)">An orderedlist must contain more than one listitems</s:assert>
+  </s:rule>
+  <s:rule id="simplelist-one-member" context="db:simplelist">
+   <s:assert test="not(count(db:member) = 1)">A simplelist must contain more than one member</s:assert>
+  </s:rule>
+ </s:pattern>
+</s:schema>
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