[docs] fix postgres create database command (#2071)

The current command `create database gotosocial with locale C.UTF-8 template template0;` fails because the locale has to be quoted:
```
postgres=# create database gotosocial with locale C.UTF-8 template template0;
ERROR:  syntax error at or near "."
LINE 1: create database gotosocial with locale C.UTF-8 template temp...
```

Tested manually that it works with the quotes and the official postgres examples also use quotes around the locales: https://www.postgresql.org/docs/current/sql-createdatabase.html

1 files changed, 1 insertions, 1 deletions

diff --git a/docs/configuration/database.md b/docs/configuration/database.md
index 3e66b09fc..294420a36 100644
--- a/docs/configuration/database.md
+++ b/docs/configuration/database.md
@@ -37,7 +37,7 @@ Then you should have already created database `gotosocial` in Postgres, and give
 The psql commands to do this will look something like:
 
 ```psql
-create database gotosocial with locale C.UTF-8 template template0;
+create database gotosocial with locale 'C.UTF-8' template template0;
 create user gotosocial with password 'some_really_good_password';
 grant all privileges on database gotosocial to gotosocial;
 ```