pages*: fix various proper names, acronyms and initialisms (#12494)

pages/common/textql.md

@@ -1,13 +1,13 @@
 # textql
 
-> Execute SQL against structured text like csv or tsv files.
+> Execute SQL against structured text like CSV or TSV files.
 > More information: <https://github.com/dinedal/textql>.
 
-- Print the lines in the specified `.csv` file that match an SQL query to `stdout`:
+- Print the lines in the specified CSV file that match an SQL query to `stdout`:
 
 `textql -sql "{{SELECT * FROM filename}}" {{path/to/filename.csv}}`
 
-- Query `.tsv` file:
+- Query a TSV file:
 
 `textql -dlm=tab -sql "{{SELECT * FROM filename}}" {{path/to/filename.tsv}}`