Some additions to the README and travis.yml

Author: lipanski

.travis.yml

@@ -5,7 +5,7 @@ addons:
 rvm: 2.7.1
 cache: bundler
 before_install: gem install bundler -v 2.1.4
-before_script: psql -U postgres -c 'create database sql_spy_test;'
+before_script: createdb sql_spy_test
 env:
   - DATABASE_URL=sqlite3:///sql_spy_test.sqlite3
   - DATABASE_URL=postgres:///sql_spy_test

README.md

@@ -2,7 +2,7 @@
 
 <a href="https://travis-ci.com/github/lipanski/sql-spy"><img src="https://api.travis-ci.com/lipanski/sql-spy.svg?branch=master"></a>
 
-A gem to track all SQL queries performed inside a given block.
+A gem to track all SQL queries performed inside a block of code.
 
 You can use **SqlSpy** to test the total amount of queries performed by a piece of code, the amount of queries per table, selects vs. inserts vs. updates vs. deletes, or query duration. You can also use it to validate and debug your SQL or to prevent N+1 queries.
 
@@ -62,6 +62,25 @@ queries_by_model = queries.group_by(&:model_name)
 assert queries_by_model.none? { |model_name, queries| queries.count > 1 }
 ```
 
+## Development
+
+The gem is tested with Postgres 9.6 and SQLite 3.
+
+To run tests with SQLite:
+
+```sh
+bundle exec rake
+```
+
+To run tests with Postgres:
+
+```sh
+# Create a test database
+cretedb sql_spy_test
+
+DATABASE_URL=postgres:///sql_spy_test bundle exec rake
+```
+
 ## License
 
 The gem is available as open source under the terms of the [MIT License](https://opensource.org/licenses/MIT).