Update libraries.json and documentation

doc/ostream_string.qbk

@@ -60,3 +60,12 @@ ostream_string(std::basic_ostream<charT, traits>& os,
 [[Returns] [`os`.]]]
 
 [endsect]
+
+[section History]
+
+[heading boost 1.71]
+* Glen Fernandes updated the implementation of the `basic_string_ref` and
+`basic_string_view` stream insertion operators to write directly to the
+`basic_streambuf` and refactored that functionality into a common utility.
+
+[endsect]

doc/string_ref.qbk

@@ -156,6 +156,11 @@ String-like operations:
 [section History]
 [/===============]
 
+[heading boost 1.71]
+* Glen Fernandes updated the implementation of the stream insertion operator to
+write directly to the `basic_streambuf` and refactored that functionality into
+a common utility.
+
 [heading boost 1.53]
 * Introduced
     

meta/libraries.json

@@ -85,6 +85,19 @@
             "Daniel Frey <d.frey -at- gmx.de>"
         ]
     },
+    {
+        "key": "utility/ostream_string",
+        "name": "ostream_string",
+        "description": "String formatted output function.",
+        "documentation": "ostream_string.html",
+        "category": [
+            "IO"
+        ],
+        "authors": "Glen Fernandes",
+        "maintainers": [
+            "Glen Fernandes <glenjofe -at- gmail.com>"
+        ]
+    },
     {
         "key": "utility/result_of",
         "name": "Result Of",
@@ -98,6 +111,19 @@
             "Daniel Walker <daniel.j.walker -at- gmail.com>"
         ]
     },
+    {
+        "key": "utility/string_ref",
+        "name": "string_ref",
+        "description": "String view templates.",
+        "documentation": "string_ref.html",
+        "category": [
+            "Containers"
+        ],
+        "authors": "Marshall Clow",
+        "maintainers": [
+            "Marshall Clow <marshall -at- idio.com>"
+        ]
+    },
     {
         "key": "utility/value_initialized",
         "name": "Value Initialized",