Fixed typos in HowToBuildWin.md 2

rest will follow..

HowToBuildWin.md

@@ -9,7 +9,7 @@
   
   ![url](https://cloud.githubusercontent.com/assets/5115160/4995708/bc5af234-69c2-11e4-91d1-112972f35f01.PNG)
 
-4. Make sure git ist installed [git-scm](http://git-scm.com/)
+4. Make sure git is installed [git-scm](http://git-scm.com/)
 5. Open a git bash (there should be a link in the start menu)
 6. Navigate to the folder where git should create the Vocaluxe project folder
   ```
@@ -22,10 +22,10 @@
   ![clone](https://cloud.githubusercontent.com/assets/5115160/4995707/bc5aa6da-69c2-11e4-95cb-71ac7b0c3fc8.png)
 
 8. Now you should find a Folder `Vocaluxe` in the given directory -> navigate into it
-9. Make sure [Visual Studio 2012/2013(?)](http://www.visualstudio.com/downloads/download-visual-studio-vs#d-express-windows-desktop) ist installed 
+9. Make sure [Visual Studio 2012/2013(?)](http://www.visualstudio.com/downloads/download-visual-studio-vs#d-express-windows-desktop) is installed 
 10. Open the file `Vocaluxe.sln` with Visual Studio
-11. Configure the build target to `ReleaseWin` and `x86` or `x64` (if you don not know which one is right -> select `x86`)
-12. Build the projects by clicking `"Build"->"Build solution"` or just press `Control`+`Shit`+`B`
+11. Configure the build target to `ReleaseWin` and `x86` or `x64` (if unsure -> select `x86`)
+12. Build the projects by clicking `"Build"->"Build solution"` or just press `Control`+`Shift`+`B`
   
   ![build](https://cloud.githubusercontent.com/assets/5115160/4995709/bc5b3474-69c2-11e4-9d9b-b49f8a3b315d.png)