doc: pg_buffercache documentation wordsmithing

A words seemed to have gone missing in the leading paragraphs.

Author: Bertrand Drouvot 
Co-authored-by: Daniel Gustafsson 
Discussion: https://postgr.es/m/[email protected]
Backpatch-through: 18

diff --git a/doc/src/sgml/pgbuffercache.sgml b/doc/src/sgml/pgbuffercache.sgml
index 537d6014942429dbc1340f4af920a419e113d729..546ace8369e28a2b7b16388386f005d7775d3a78 100644 (file)
--- a/doc/src/sgml/pgbuffercache.sgml
+++ b/doc/src/sgml/pgbuffercache.sgml
@@ -37,12 +37,12 @@
 
  
   This module provides the pg_buffercache_pages()
-  function (wrapped in the pg_buffercache view),
+  function (wrapped in the pg_buffercache view), the
   pg_buffercache_numa_pages() function (wrapped in the
   pg_buffercache_numa view), the
   pg_buffercache_summary() function, the
   pg_buffercache_usage_counts() function, the
-  pg_buffercache_evict(), the
+  pg_buffercache_evict() function, the
   pg_buffercache_evict_relation() function and the
   pg_buffercache_evict_all() function.
  
@@ -55,7 +55,7 @@
  
 
  
-  The pg_buffercache_numa_pages() provides
+  The pg_buffercache_numa_pages() function provides
   NUMA node mappings for shared buffer entries. This
   information is not part of pg_buffercache_pages()
   itself, as it is much slower to retrieve.