Misc doc fixes

FU/Pg.pm

@@ -71,7 +71,7 @@ C<$string> can either be in key=value format or a URI, refer to L<the
 PostgreSQL
 documentation|https://www.postgresql.org/docs/current/libpq-connect.html#LIBPQ-CONNSTRING>
 for the full list of supported formats and options. You may also pass an empty
-string and leave the configuration up L<environment
+string and leave the configuration up to L<environment
 variables|https://www.postgresql.org/docs/current/libpq-envars.html>.
 
 =item $conn->server_version
@@ -702,7 +702,7 @@ While C<null> is a valid JSON value, there's currently no way to distinguish
 that from SQL C<NULL>. When sending C<undef> as bind parameter, it is sent as
 SQL C<NULL>.
 
-If you prefer to work with JSON are raw text values instead, use:
+If you prefer to work with JSON as raw text values instead, use:
 
   $conn->set_type(json => 'text');
 

FU/SQL.pm

@@ -121,7 +121,7 @@ FU::SQL - Small and Safe SQL Query Builder
 
   my $sel = SQL 'SELECT id, name FROM table', WHERE { id => IN([1,2,3]) };
 
-  my($sql, @params) = $sel->compile;
+  my($sql, $params) = $sel->compile;
 
 =head1 DESCRIPTION