Spelling correction

Hi,

I noticed some spelling mistakes in the docs so I've fixed them in this commit.

apiary.apib

@@ -17,18 +17,18 @@ We also provide simplified API so you can do updates via GET requests.
 
 ### Get pin value [GET]
 
-+ Response 200 (applciation/json)
++ Response 200 (application/json)
 
         [
         ]
 
-+ Response 200 (applciation/json)
++ Response 200 (application/json)
 
         [
             "1"
         ]
 
-+ Response 200 (applciation/json)
++ Response 200 (application/json)
 
         [
             "1",
@@ -152,11 +152,11 @@ We also provide simplified API so you can do updates via GET requests.
 
 ### Checks that hardware with provided token is online and connected to server [GET]
 
-+ Response 200 (applciation/json)
++ Response 200 (application/json)
 
         true
 
-+ Response 200 (applciation/json)
++ Response 200 (application/json)
 
         false
 
@@ -168,11 +168,11 @@ We also provide simplified API so you can do updates via GET requests.
 
 ### Check that application is connected to server and has active project with provided token [GET]
 
-+ Response 200 (applciation/json)
++ Response 200 (application/json)
 
         true
 
-+ Response 200 (applciation/json)
++ Response 200 (application/json)
 
         false
 
@@ -281,7 +281,7 @@ Returns project connected with provided token.
 
 ### Get project [GET]
 
-+ Response 200 (applciation/json)
++ Response 200 (application/json)
 
         {
            "id":125564119,