Fix typos (#218)

Author: williamho

.github/CONTRIBUTING.md

@@ -11,8 +11,8 @@ You may open an issue also to request new features. Make sure you describe what
 If you consider submitting a pull request, please note the following:
 
 1. All pull requests **must** be submitted to the `Development` branch. The `master` branch is exclusively mutable by release. PRs against `master` will not be merged.
-2. Pleae make sure you follow the projects code style. To make sure you did, you can use `./gradlew checkstyleMain`.
+2. Please make sure you follow the projects code style. To make sure you did, you can use `./gradlew checkstyleMain`.
 3. The project is licensed under [GNU GPLv3](../LICENSE.txt) thus all code you submit will be subject to this license.
 
 ## Contact
-If you have any questions regarding the library you can ask those on the `#javaapi` channel on the [Pokemon GO Reverse Engineering Slack](https://pkre.slack.com/). You can [get your invite here](https://shielded-earth-81203.herokuapp.com/).
+If you have any questions regarding the library you can ask those on the `#javaapi` channel on the [Pokemon GO Reverse Engineering Slack](https://pkre.slack.com/). You can [get your invite here](https://shielded-earth-81203.herokuapp.com/).

.github/ISSUE_TEMPLATE.md

@@ -1,5 +1,5 @@
 **Description:**
-[Short description of the issue observed. If this ia feature request you can modify the template as required.]
+[Short description of the issue observed. If this is a feature request you can modify the template as required.]
 
 **Steps to reproduce:**
 
@@ -16,4 +16,4 @@
 [Please use pastebin if it's too long]
 
 **Version:**
-[The version of the lib you used]
+[The version of the lib you used]

README.md

@@ -57,9 +57,9 @@ You're running the sample code on the UI thread. Strict mode policy will throw a
 
 This library is meant to be a Java implementation of the API. Google Volley is specific to Android and should not be introduced in this library. However, if you still want to refactor it, you should create it as a separate project.
 
-   - How can I use Android's native Google sign in with this libary?
+   - How can I use Android's native Google sign in with this library?
 
-You can't. The Google Indentity Platform uses the SHA1 fingerprint and package name to authenticate the caller of all sign in requests. This means that Niantic would need to add your app's SHA1 fingerprint and package name to their Google API Console. If you ever requested a Google Maps API key, you went through the same process. An alternative would be using a WebView to access the web based OAuth flow. This will work with the client ID and secret provided by this library.
+You can't. The Google Identity Platform uses the SHA1 fingerprint and package name to authenticate the caller of all sign in requests. This means that Niantic would need to add your app's SHA1 fingerprint and package name to their Google API Console. If you ever requested a Google Maps API key, you went through the same process. An alternative would be using a WebView to access the web based OAuth flow. This will work with the client ID and secret provided by this library.
 
 
 ## Contributing