webui doc: typo fixes in guides

Reviewed-By: Petr Vobornik <pvoborni@redhat.com>

install/ui/doc/guides.json

@@ -23,7 +23,7 @@
             {
                 "name": "Phases",
                 "url": "guides/phases",
-                "title": "Appliaciton phases",
+                "title": "Application phases",
                 "description": "Introduction to application phases"
             },
             {
@@ -34,4 +34,4 @@
             }
         ]
     }
-]
+]

install/ui/doc/guides/debugging_web_ui/README.md

@@ -67,7 +67,7 @@ Notes:
 
 ## Conclusion
 
-While reporting an UI bug it's good the check if there is some JavaScript error and if so send a call stack with line numbers, preferably the ones by using source codes. If source codes are not available, pretty print function should be used and send also code (~15 lines on both sides) around the bug.
+While reporting an UI bug it's good to check if there is some JavaScript error and if so, send a call stack with line numbers, preferably the ones by using source codes. If source codes are not available, pretty print function should be used and send also code (~15 lines on both sides) around the bug.
 
 The most valuable information in order of preference are: