Clarify bufferSize parameter description in XML

Author: ViveliDuCh

xml/System.IO/StreamReader.xml

@@ -974,13 +974,13 @@
         <param name="stream">The stream to be read.</param>
         <param name="encoding">The character encoding to use.</param>
         <param name="detectEncodingFromByteOrderMarks">Indicates whether to look for byte order marks at the beginning of the file.</param>
-        <param name="bufferSize">The minimum buffer size.</param>
+        <param name="bufferSize">The minimum buffer size in bytes.</param>
         <summary>Initializes a new instance of the <see cref="T:System.IO.StreamReader" /> class for the specified stream, with the specified character encoding, byte order mark detection option, and buffer size.</summary>
         <remarks>
           <format type="text/markdown"><![CDATA[
 
 ## Remarks
- The buffer size, in number of 16-bit characters, is set by the `bufferSize` parameter. If `bufferSize` is less than the minimum allowable size (128 characters), the minimum allowable size is used.
+ The buffer size, in bytes, is set by the `bufferSize` parameter. If `bufferSize` is less than the minimum allowable size (128 bytes), the minimum allowable size is used.
 
  This constructor allows you to change the encoding the first time you read from the <xref:System.IO.StreamReader> object. The `detectEncodingFromByteOrderMarks` parameter detects the encoding by looking at the first four bytes of the stream. It automatically recognizes UTF-8, little-endian UTF-16, big-endian UTF-16, little-endian UTF-32, and big-endian UTF-32 text if the file starts with the appropriate byte order marks. Otherwise, the user-provided encoding is used. See the <xref:System.Text.Encoding.GetPreamble%2A?displayProperty=nameWithType> method for more information.
 
@@ -1077,7 +1077,7 @@
         <param name="path">The complete file path to be read.</param>
         <param name="encoding">The character encoding to use.</param>
         <param name="detectEncodingFromByteOrderMarks">Indicates whether to look for byte order marks at the beginning of the file.</param>
-        <param name="bufferSize">The minimum buffer size, in number of 16-bit characters.</param>
+        <param name="bufferSize">The minimum buffer size in bytes.</param>
         <summary>Initializes a new instance of the <see cref="T:System.IO.StreamReader" /> class for the specified file name, with the specified character encoding, byte order mark detection option, and buffer size.</summary>
         <remarks>
           <format type="text/markdown"><![CDATA[
@@ -1087,7 +1087,7 @@
 
  This constructor allows you to change the encoding the first time you read from the <xref:System.IO.StreamReader> object. The `detectEncodingFromByteOrderMarks` parameter detects the encoding by looking at the first four bytes of the stream. It automatically recognizes UTF-8, little-endian UTF-16, big-endian UTF-16, little-endian UTF-32, and big-endian UTF-32 text if the file starts with the appropriate byte order marks. Otherwise, the user-provided encoding is used. See the <xref:System.Text.Encoding.GetPreamble%2A?displayProperty=nameWithType> method for more information.
 
- The buffer size, in number of 16-bit characters, is set by the `bufferSize` parameter. If `bufferSize` is less than the minimum allowable size (128 characters), the minimum allowable size is used.
+ The buffer size, in bytes, is set by the `bufferSize` parameter. If `bufferSize` is less than the minimum allowable size (128 bytes), the minimum allowable size is used.
 
  The `path` parameter can be a file name, including a file on a Universal Naming Convention (UNC) share.
 
@@ -1249,7 +1249,7 @@
         <param name="encoding">The character encoding to use.</param>
         <param name="detectEncodingFromByteOrderMarks">
           <see langword="true" /> to look for byte order marks at the beginning of the file; otherwise, <see langword="false" />.</param>
-        <param name="bufferSize">The minimum buffer size.</param>
+        <param name="bufferSize">The minimum buffer size in bytes.</param>
         <param name="leaveOpen">
           <see langword="true" /> to leave the stream open after the <see cref="T:System.IO.StreamReader" /> object is disposed; otherwise, <see langword="false" />.</param>
         <summary>Initializes a new instance of the <see cref="T:System.IO.StreamReader" /> class for the specified stream based on the specified character encoding, byte order mark detection option, and buffer size, and optionally leaves the stream open.</summary>
@@ -1259,7 +1259,7 @@
 ## Remarks
  Unless you set the `leaveOpen` parameter to `true`, the <xref:System.IO.StreamReader> object calls <xref:System.IO.Stream.Dispose> on the provided <xref:System.IO.Stream> object when <xref:System.IO.StreamReader.Dispose%2A?displayProperty=nameWithType> is called.
 
- The buffer size, in number of 16-bit characters, is set by the `bufferSize` parameter. If `bufferSize` is less than the minimum allowable size (128 characters), the minimum allowable size is used.
+ The buffer size, in bytes, is set by the `bufferSize` parameter. If `bufferSize` is less than the minimum allowable size (128 bytes), the minimum allowable size is used.
 
  This constructor enables you to change the encoding the first time you read from the <xref:System.IO.StreamReader> object. If the `detectEncodingFromByteOrderMarks` parameter is `true`, the constructor detects the encoding by looking at the first four bytes of the stream. It automatically recognizes UTF-8, little-endian UTF-16, big-endian UTF-16, little-endian UTF-32, and big-endian UTF-32 text if the file starts with the appropriate byte order marks. Otherwise, the user-provided encoding is used. See the <xref:System.Text.Encoding.GetPreamble%2A?displayProperty=nameWithType> method for more information.