tabs -> spaces
diff --git a/asterix-doc/pom.xml b/asterix-doc/pom.xml
index d987e5f..4b8cb2f 100644
--- a/asterix-doc/pom.xml
+++ b/asterix-doc/pom.xml
@@ -1,21 +1,21 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-	<modelVersion>4.0.0</modelVersion>
-	<parent>
-		<artifactId>asterix</artifactId>
-		<groupId>edu.uci.ics.asterix</groupId>
-		<version>0.0.6-SNAPSHOT</version>
-	</parent>
-	<artifactId>asterix-doc</artifactId>
-	<build>
-		<plugins>
-			<plugin>
-				<groupId>org.apache.maven.plugins</groupId>
-				<artifactId>maven-site-plugin</artifactId>
-				<version>3.3</version>
-				<configuration>
-				  <generateReports>false</generateReports>
-				</configuration>
-			</plugin>
-		</plugins>
-	</build>
+  <modelVersion>4.0.0</modelVersion>
+  <parent>
+    <artifactId>asterix</artifactId>
+    <groupId>edu.uci.ics.asterix</groupId>
+    <version>0.0.6-SNAPSHOT</version>
+  </parent>
+  <artifactId>asterix-doc</artifactId>
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-site-plugin</artifactId>
+        <version>3.3</version>
+        <configuration>
+          <generateReports>false</generateReports>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
 </project>