Fix typos in docs (#828)

Author: nene

README.md

@@ -228,7 +228,7 @@ Or when using the VSCode extension: Settings -> SQL-Formatter-VSCode: SQLFlavour
 
 ### Module parse failed: Unexpected token
 
-This typically happens when bundling an appication with Webpack.
+This typically happens when bundling an application with Webpack.
 The cause is that Babel (through `babel-loader`) is not configured
 to support class properties syntax:
 
@@ -264,7 +264,7 @@ SELECT {col1}, {col2} FROM {tablename}
 
 While templating is not directly supported by SQL Formatter, the workaround
 is to use [paramTypes](docs/paramTypes.md) config option to treat these
-occurances of templating constructs as prepared-statement parameter-placeholders:
+occurrences of templating constructs as prepared-statement parameter-placeholders:
 
 ```js
 format('SELECT {col1}, {col2} FROM {tablename};', {

docs/paramTypes.md

@@ -66,7 +66,7 @@ An object with the following following optional fields:
 - **`numbered`**: `Array<"?" | ":" | "$">`. To allow for `?1`, `:2` and/or `$3` syntax for numbered placholders.
 - **`named`**: `Array<":" | "@" | "$">`. To allow for `:name`, `@name` and/or `$name` syntax for named placholders.
 - **`quoted`**: `Array<":" | "@" | "$">`. To allow for `:"name"`, `@"name"` and/or `$"name"` syntax for quoted placholders.
-  Note that the type of quotes dependes on the quoted identifiers supported by a dialect.
+  Note that the type of quotes depends on the quoted identifiers supported by a dialect.
   For example in MySQL using `paramTypes: {quoted: [':']}` would allow you to use `` :`name` `` syntax,
   while in Transact-SQL `:"name"` and `:[name]` would work instead.
   See [identifier syntax wiki page][] for information about differences in support quoted identifiers.