Additional fixes.

Author: TimShererWithAquent

docs/analytics-platform-system/polybase-configure-hadoop-security.md

@@ -10,7 +10,7 @@ ms.author: murshedz
 ms.reviewer: martinle
 ms.custom: seo-dt-2019
 ---
-# PolyBase Configure Hadoop Security
+# Configure PolyBase Hadoop security
 
 This article provides a reference for various configuration settings that affect APS PolyBase connectivity to Hadoop. For a walkthrough on what is PolyBase, see [What is PolyBase](configure-polybase-connectivity-to-external-data.md).
 

docs/machine-learning/tutorials/r-predictive-model-introduction.md

@@ -12,7 +12,7 @@ ms.date: 05/26/2020
 ms.custom: seo-lt-2019
 monikerRange: ">=sql-server-2016||>=sql-server-linux-ver15||=azuresqldb-mi-current||=sqlallproducts-allversions"
 ---
-# Tutorial: Develop predictive model in R with SQL machine learning
+# Tutorial: Develop a predictive model in R with SQL machine learning
 [!INCLUDE [SQL Server SQL MI](../../includes/applies-to-version/sql-asdbmi.md)]
 
 ::: moniker range=">=sql-server-ver15||>=sql-server-linux-ver15||=sqlallproducts-allversions"