Fix typos on README

Author: pitbulk

README.md

@@ -715,8 +715,8 @@ if (!$auth->isAuthenticated()) {
 $_SESSION['samlUserdata'] = $auth->getAttributes();
 $_SESSION['samlNameId'] = $auth->getNameId();
 $_SESSION['samlNameIdFormat'] = $auth->getNameIdFormat();
-$_SESSION['samlNameidNameQualifier' = $auth->getNameIdNameQualifier();
-$_SESSION['samlNameidSPNameQualifier' = $auth->getNameIdSPNameQualifier();
+$_SESSION['samlNameidNameQualifier'] = $auth->getNameIdNameQualifier();
+$_SESSION['samlNameidSPNameQualifier'] = $auth->getNameIdSPNameQualifier();
 $_SESSION['samlSessionIndex'] = $auth->getSessionIndex();
 
 if (isset($_POST['RelayState']) && OneLogin\Saml2\Utils::getSelfURL() != $_POST['RelayState']) {
@@ -976,7 +976,7 @@ A more complex logout with all the parameters:
 ```
 $auth = new OneLogin\Saml2\Auth();
 $returnTo = null;
-$paramters = array();
+$parameters = array();
 $nameId = null;
 $sessionIndex = null;
 $nameIdFormat = null;
@@ -998,13 +998,13 @@ if (isset($_SESSION['samlNameIdNameQualifier'])) {
 if (isset($_SESSION['samlNameIdSPNameQualifier'])) {
     $nameIdSPNameQualifier = $_SESSION['samlNameIdSPNameQualifier'];
 }
-$auth->logout($returnTo, $paramters, $nameId, $sessionIndex, false, $nameIdFormat, $nameIdNameQualifier, $nameIdSPNameQualifier);
+$auth->logout($returnTo, $parameters, $nameId, $sessionIndex, false, $nameIdFormat, $nameIdNameQualifier, $nameIdSPNameQualifier);
 ```
 
 If a match on the future LogoutResponse ID and the LogoutRequest ID to be sent is required, that LogoutRequest ID must to be extracted and stored.
 
 ```php
-$sloBuiltUrl = $auth->logout(null, $paramters, $nameId, $sessionIndex, true);
+$sloBuiltUrl = $auth->logout(null, $parameters, $nameId, $sessionIndex, true);
 $_SESSION['LogoutRequestID'] = $auth->getLastRequestID();
 header('Pragma: no-cache');
 header('Cache-Control: no-cache, must-revalidate');
@@ -1106,7 +1106,7 @@ php-saml toolkit uses a bunch of methods in OneLogin\Saml2\Utils that try to gue
 * `getSelfURLNoQuery` Returns the URL of the current host + current view.
 * `getSelfRoutedURLNoQuery` Returns the routed URL of the current host + current view.
 
-getSelfURLNoQuery and getSelfRoutedURLNoQuery are used to calculate the currentURL in order to valdate SAML elements like Destination or Recipient.
+getSelfURLNoQuery and getSelfRoutedURLNoQuery are used to calculate the currentURL in order to validate SAML elements like Destination or Recipient.
 
 When the PHP application is behind a proxy or a load balancer we can execute `setProxyVars(true)` and `setSelfPort` and `isHTTPS` will take care of the `$_SERVER["HTTP_X_FORWARDED_PORT"]` and `$_SERVER['HTTP_X_FORWARDED_PROTO']` vars (otherwise they are ignored).
 
@@ -1408,7 +1408,7 @@ Once the SP is configured, the metadata of the SP is published at the
     process, the `index.php` view.
 
     2.2 in the second link we access to (`attrs.php`) have the same process
-    described at 2.1 with the diference that as `RelayState` is set the `attrs.php`.
+    described at 2.1 with the difference that as `RelayState` is set the `attrs.php`.
 
  3. The SAML Response is processed in the ACS (`index.php?acs`), if the Response
     is not valid, the process stops here and a message is shown. Otherwise we
@@ -1435,7 +1435,7 @@ Once the SP is configured, the metadata of the SP is published at the
     session at of the IdP. Notice that the SLO Workflow starts and ends at the IdP.
 
 Notice that all the SAML Requests and Responses are handled by a unique file,
-the `index.php` file and how `GET` paramters are used to know the action that
+the `index.php` file and how `GET` parameters are used to know the action that
 must be done.