chore: fix typo/spelling (#57)

Author: brianteeman

README.md

@@ -344,11 +344,11 @@ This renderer has no detailed diff.
       "tag": "eq",
       "old": {
         "offset": 8,
-        "lines": ["\t  \tTab visulization test.", "G"]
+        "lines": ["\t  \tTab visualization test.", "G"]
       },
       "new": {
         "offset": 9,
-        "lines": ["\t  \tTab visulization test.", "G"]
+        "lines": ["\t  \tTab visualization test.", "G"]
       }
     },
     {
@@ -519,11 +519,11 @@ If you don't need those detailed diff, consider using the `JsonText` renderer.
       "tag": "eq",
       "old": {
         "offset": 8,
-        "lines": ["\t  \tTab visulization test.", "G"]
+        "lines": ["\t  \tTab visualization test.", "G"]
       },
       "new": {
         "offset": 9,
-        "lines": ["\t  \tTab visulization test.", "G"]
+        "lines": ["\t  \tTab visualization test.", "G"]
       }
     },
     {

example/new_file.txt

@@ -7,7 +7,7 @@ Just a context separator. 1
 M
 N
 Do you know in Japanese, "魚の缶詰" means fish can.
-	  	Tab visulization test.
+	  	Tab visualization test.
 G
 Say hello to my neighbors.
 A

example/old_file.txt

@@ -6,7 +6,7 @@ Just a context separator. 1
 M
 N
 Do you know in Chinese, "金槍魚罐頭" means tuna can.
-	  	Tab visulization test.
+	  	Tab visualization test.
 G
 // remember to delete this line
 Say hello to my neighbors.