Fix Markdown, add .mdlrc

Author: otherguy

.mdlrc

@@ -0,0 +1 @@
+rule 'MD013', :line_length => 160, :code_blocks => false, :tables => false

README.md

@@ -1,4 +1,5 @@
 # 💱 PHP Currency Exchange Rate API
+
 _A PHP 7 API Wrapper for Popular Currency Rate APIs._
 
 [![Version](https://img.shields.io/packagist/v/otherguy/php-currency-api.svg?style=flat-square)](https://packagist.org/packages/otherguy/php-currency-api)
@@ -12,17 +13,20 @@ _A PHP 7 API Wrapper for Popular Currency Rate APIs._
 Dont worry about your favorite currency conversion service suddenly shutting down or switching plans on you. Switch away easily.
 
 ## Inspiration 💅
+
 I needed a currency conversion API for [my travel website]() but could not find a good PHP package. The idea of the
 [`Rackbeat/php-currency-api`](https://github.com/Rackbeat/php-currency-api) package came closest but unfortunately it
 was just a stub and not implemented.
 
 ## Features 🌈
+
 * Support for [multiple different APIs](#supported-apis-) through the use of drivers
 * A [fluent interface](#fluent-interface) to make retrieving exchange rates convenient and fast
 * Consistent return interface that is independent of the driver being used
 * [Calculations](#conversion-result) can be made based on the returned data
 
 ## Supported APIs 🌐
+
 | Service                                              | Identifier          |
 |------------------------------------------------------|---------------------|
 | [FixerIO](https://fixer.io)                          | `fixerio`           |
@@ -33,11 +37,13 @@ was just a stub and not implemented.
 _If you want to see more services added, feel free to [open an issue](https://github.com/otherguy/php-currency-api/issues)!_
 
 ## Prerequisites 📚
+
 * `PHP 7.1` or higher (Tested on: PHP `7.1` ✅, `7.2` ✅ and `7.3` ✅)
 * The [`composer`](https://getcomposer.org) dependency manager for PHP
 * An account with one or more of the [API providers](#supported-apis-) listed above
 
 ## Installation 🚀
+
 Simply require the package using `composer` and you're good to go!
 
 ```bash
@@ -47,6 +53,7 @@ $ composer require otherguy/php-currency-api
 ## Usage 🛠
 
 ### Currency Symbol Helper
+
 The [`Otherguy\Currency\Symbol`](src/Symbol.php) class provides constants for each supported currency.
 
 > ！**Note:** You are not required to use `Otherguy\Currency\Symbol` to specify symbols. It's simply a convenience helper
@@ -68,17 +75,18 @@ The `names()` method returns an associative array with currency names instead:
 
 ```php
 // [ 'AED' => 'United Arab Emirates Dirham', 'AFN' => 'Afghan Afghani', ... ]
-$symbols = Otherguy\Currency\Symbol::names(); 
+$symbols = Otherguy\Currency\Symbol::names();
 ```
 
 To get the name of a single currency, use the `name()` method:
 
 ```php
 // 'United States Dollar'
-$symbols = Otherguy\Currency\Symbol::name(Otherguy\Currency\Symbol::USD); 
+$symbols = Otherguy\Currency\Symbol::name(Otherguy\Currency\Symbol::USD);
 ```
 
 ### Initialize API Instance
+
 ```php
 $currency = Otherguy\Currency\DriverFactory::make('fixerio'); // driver identifier from supported drivers.
 ```
@@ -91,6 +99,7 @@ $drivers = Otherguy\Currency\DriverFactory::getDrivers()
 ```
 
 ### Set Access Key
+
 Most API providers require you to sign up and use your issued access key to authenticate against their API. You can
 specify your access key like so:
 
@@ -99,6 +108,7 @@ $currency->accessKey('your-access-token-goes-here');
 ```
 
 ### Set Configuration Options
+
 To set further configuration options, you can use the `config()` method. An example is
 [CurrencyLayer's JSON formatting option](https://currencylayer.com/documentation#format).
 
@@ -107,12 +117,13 @@ $currency->config('format', '1');
 ```
 
 ### Set Base Currency
+
 You can use either `from()` or `source()` to set the base currency. The methods are identical.
 
 > ！**Note:** Each driver sets its own default base currency. [FixerIO](https://fixer.io) uses `EUR` as base currency
 > while [CurrencyLayer](https://currencylayer.com) uses `USD`.
 
-Most services only allow you to change the base currency in their paid plans. The driver will throw a 
+Most services only allow you to change the base currency in their paid plans. The driver will throw a
 `Otherguy\Currency\Exceptions\ApiException` if your current plan does not allow changing the base currency.
 
 ```php
@@ -121,18 +132,20 @@ $currency->from(Otherguy\Currency\Symbol::USD);
 ```
 
 ### Set Return Currencies
+
 You can use either `to()` or `symbols()` to set the return currencies. The methods are identical. Pass a single currency
-or an array of currency symbols to either of these methods. 
+or an array of currency symbols to either of these methods.
 
 > ！**Note:** Pass an empty array to return all currency symbols supported by this driver. This is the default if you
-> don't call the method at all. 
+> don't call the method at all.
  
 ```php
 $currency->to(Otherguy\Currency\Symbol::BTC);
 $currency->symbols([Otherguy\Currency\Symbol::BTC, Otherguy\Currency\Symbol::EUR, Otherguy\Currency\Symbol::USD]);
 ```
 
 ### Latest Rates
+
 This retrieves the most recent exchange rates and returns a [`ConversionResult`](#conversion-result) object.
 
 ```php
@@ -141,6 +154,7 @@ $currency->get('DKK');  // Get latest rates for selected symbols, using DKK as b
 ```
 
 ### Historical Rates
+
 To retrieve historical exchange rates, use the `historical()` method. Note that you need to specify a date either as a
 method parameter or by using the `date()` methods. See [Fluent Interface](#fluent-interface) for more information.
 
@@ -150,6 +164,7 @@ $currency->historical('2018-07-01');
 ```
 
 ### Convert Amount
+
 Use the `convert()` method to convert amounts between currencies.
 
 > ！**Note:** Most API providers don't allow access to this method using your free account. You can still use the 
@@ -162,25 +177,27 @@ $currency->convert(122.50, 'NPR', 'EUR', '2019-01-01'); // Convert 122.50 NPR to
 ```
 
 ### Fluent Interface
+
 Most methods can be used with a _fluent interface_, allowing you to chain method calls for more readable code:
 
 ```php
-// Namespaces are omitted for readability! 
+// Namespaces are omitted for readability!
 DriverFactory::make('driver')->from(Symbol::USD)->to(Symbol::EUR)->get();
 DriverFactory::make('driver')->from(Symbol::USD)->to(Symbol::NPR)->date('2013-03-02')->historical();
 DriverFactory::make('driver')->from(Symbol::USD)->to(Symbol::NPR)->amount(12.10)->convert();
 ```
 
 ### Conversion Result
+
 The [`get()`](#latest-rates) and [`historical()`](#historical-rates) endpoints return a 
 [`ConversionResult`](src/Results/ConversionResult.php) object. This object allows you to perform calculations and 
 conversions easily.
 
 > ！**Note:** Even though free accounts of most providers do not allow you to change the base currency, you can still
-> use the `ConversionResult` object to change the base currency later. This might not be as accurate as changing the 
-> base currency directly, though. 
+> use the `ConversionResult` object to change the base currency later. This might not be as accurate as changing the
+> base currency directly, though.
 
-> ！**Note:** To convert between two currencies, you need to request both of them in your initial [`get()`](#latest-rates) 
+> ！**Note:** To convert between two currencies, you need to request both of them in your initial [`get()`](#latest-rates)
 > or [`historical()`](#historical-rates) request. You can not convert between currencies that have not been fetched!
 
 See the following code for some examples of what you can do with the `ConversionResult` object.
@@ -214,5 +231,6 @@ $result->setBaseCurrency(Symbol::GBP)->rate(Symbol::EUR);
 ```
 
 ## Contributing 🚧
-[Pull Requests](https://github.com/otherguy/php-currency-api/pulls) are more than welcome! I'm striving for 100% test 
+
+[Pull Requests](https://github.com/otherguy/php-currency-api/pulls) are more than welcome! I'm striving for 100% test
 coverage for this repository so please make sure to add tests for your code.