Merge pull request #4854 from EnterpriseDB/docs/edits_to_pg_extension…

…s_pr4805

small cleanup to new content

advocacy_docs/pg_extensions/advanced_storage_pack/using.mdx

@@ -7,7 +7,7 @@ The following are scenarios where the EDB Advanced Storage Pack TAMs are useful.
 
 ## Refdata example
 
-A scenario where Refdata is useful is when creating a reference table of all
+A scenario where Refdata is useful is creating a reference table of all
 the New York Stock Exchange (NYSE) stock symbols and their corporate names.
 This data is expected to change very rarely and be referenced frequently from a
 table tracking all stock trades for the entire market.
@@ -32,7 +32,7 @@ CREATE INDEX ON nyse_trade USING BTREE(nyse_symbol_id);
 ```
 
 When `heap` is used for `nyse_symbol`, manipulating rows in `nyse_trade` causes
-row locks to be created in `nyse_symbol`, but only row locks are used in
+row locks to be created in `nyse_symbol`. But only row locks are used in
 `nyse_symbol`:
 
 ```sql
@@ -82,7 +82,7 @@ CREATE TABLE nyse_symbol (
 ) USING refdata;
 ```
 
-In this case, manipulating data in `nyse_trade` does not generate row locks in `nyse_symbol`. But manipulating `nyse_symbol` directly cause an `EXCLUSIVE` lock to be acquired on the entire relation:
+In this case, manipulating data in `nyse_trade` doesn't generate row locks in `nyse_symbol`. But manipulating `nyse_symbol` directly causes an `EXCLUSIVE` lock to be acquired on the entire relation:
 
 ```sql
 =# BEGIN;
@@ -143,7 +143,7 @@ SELECT autocluster.autocluster(
 ```
 
 !!! Note
-The `cols` parameter specifies which table is clustered. In this case, `{1}` corresponds to the first column of the table, `thermostat_id`, which is the most common access pattern.
+The `cols` parameter specifies the table that's clustered. In this case, `{1}` corresponds to the first column of the table, `thermostat_id`, which is the most common access pattern.
 !!!
 
 Populate the table with the `thermostat_id` and `recordtime` data:
@@ -243,19 +243,19 @@ ANALYZE nyse_trade;
 ```
 
 Given that the inserts intercalated `nyse_symbol_id`, a query that consults one
-stock would touch most pages if the table used `heap`, but would touch far
+stock touches most pages if the table uses heap, but touches far
 fewer pages using Autocluster.
 
 The following query operates on attributes that must be fetched from the table
-after an index scan, and shows the number of buffers touched:
+after an index scan and shows the number of buffers touched:
 
 ```sql
 EXPLAIN (ANALYZE, BUFFERS, TIMING OFF, SUMMARY OFF, COSTS OFF)
     SELECT AVG(trade_volume * trade_price)
     FROM nyse_trade WHERE nyse_symbol_id = 10;
 ```
 
-This is the query plan using `autocluster`:
+This is the query plan using Autocluster:
 
 ```
                                           QUERY PLAN
@@ -272,7 +272,7 @@ This is the query plan using `autocluster`:
 (9 rows)
 ```
 
-For contrast, this is the query plan using `heap`:
+For contrast, this is the query plan using heap:
 
 ```
                                           QUERY PLAN