correct Shapshot typo, and capitalization

Author: Mark Han

ISSUE_TEMPLATE.md

@@ -5,8 +5,8 @@ If there is a feature that you would like to see added to the Appium Java client
 
 ## Environment
 
-* Java client build version or git revision if you use some shapshot:
-* Appium server version or git revision if you use some shapshot:
+* Java client build version or git revision if you use some snapshot:
+* Appium server version or git revision if you use some snapshot:
 * Desktop OS/version used to run Appium if necessary:
 * Node.js version (unless using Appium.app|exe) or Appium CLI or Appium.app|exe:
 * Mobile platform/version under test:
@@ -24,11 +24,11 @@ You can git clone https://github.com/appium/appium/tree/master/sample-code or ht
 Also you can create a [gist](https://gist.github.com) with pasted java code sample or put it here using markdown. About markdown please read [Mastering markdown](https://guides.github.com/features/mastering-markdown/) and 
 [Writing on GitHub](https://help.github.com/categories/writing-on-github/)
 
-## Exception stacktraces
+## Exception Stacktraces
 
 Please create a [gist](https://gist.github.com) with the pasted stacktrace of the exception thrown by java.
 
-## Link to Appium logs
+## Link To Appium Logs
 
 Please create a [gist](https://gist.github.com) which is a paste of your _full_ Appium logs, and link them here. Do _not_ paste your full Appium logs here, as it will make this issue very long and hard to read! 
 If you are reporting a bug, _always_ include Appium logs as linked gists! It helps to define the problem correctly and clearly.