Fix typos (GeorgeKaraszi#108)

Found with

```
codespell **/*.rb **/*.md
```

CHANGELOG.md

@@ -153,11 +153,11 @@ Overall Examples:
 # 1.2.0 - August 11th 2019
 
 ## Changes
-- Introduce `.foster_select` a helper for select statements that can handel aliasing and provides casting options for many common aggregate functions.
+- Introduce `.foster_select` a helper for select statements that can handle aliasing and provides casting options for many common aggregate functions.
 Supports any aggregate that does not require multiple arguments (`COUNT`, `AVG`, `MAX`, `ARRAY_AGG`, etc..): [Aggregate Functions](https://www.postgresql.org/docs/current/functions-aggregate.html)
   - Supports Aggregate `DISTINCT` and `ORDER BY` inner expressions.
 - Reduced the code foot-print for declaring new Arel functions
-- Introduce new `Arel::Nodes::AggregateFunctionName` for dealing with inline-ing `ORDER BY` (will be expanded to handel `FILTER` next)
+- Introduce new `Arel::Nodes::AggregateFunctionName` for dealing with inline-ing `ORDER BY` (will be expanded to handle `FILTER` next)
 - Code cleanup and some minor performance tweaks
 
 ##### Changes to `.select_row_to_json`
@@ -196,7 +196,7 @@ Add support for Postgres Union types and refactor Arel building process into a s
   - or `.union.as`
 - `order_union` (ORDER BY)
   - or `.union.order`
-- `.reorder_union` (overides previously set `.order_union`)
+- `.reorder_union` (overrides previously set `.order_union`)
   - or `union.reorder`
 
 ## JSON Query Commands
@@ -208,7 +208,7 @@ Add support for Postgres Union types and refactor Arel building process into a s
 
 # 0.7.0 - September 22nd 2018
 
-Add support for Postgres Commend Table Expression (CTE) methods.
+Add support for Postgres Common Table Expression (CTE) methods.
 
 - `.with/1`
 - `.with.recursive/1`
@@ -291,7 +291,7 @@ Added ActiveRecord Where Chain Functionality:
 
 Major thanks to [Dan McClain author of Postgres Ext](https://github.com/dockyard/postgres_ext)
 
-Added ActiveRecord Base Extentions
+Added ActiveRecord Base Extensions
 - .either_order/2
 - .either_join/2
 

README.md

@@ -560,7 +560,7 @@ As a means for taking complex  query logic and transform them into a single or m
 
 **Options:**
    - `as`: [Symbol or String] (defaults to `"results"`): What the column will be aliased to
-   - `value`: [Symbol or String] (defaults to `key` argument): How the response should handel the json value return
+   - `value`: [Symbol or String] (defaults to `key` argument): How the response should handle the json value return
 
 See the included example on [Row To JSON](#row-to-json) to see it in action.
 
@@ -606,7 +606,7 @@ There's an issue with providing a single union clause and chaining it with a dif
 This is due to requirements of grouping SQL statements. The issue is being working on, but with no ETA.
 
 This issue only applies to the first initial set of unions and is recommended that you union two relations right off the bat.
-Afterwords you can union/chain single relations.
+Afterwards you can union/chain single relations.
 
 Example
 

lib/active_record_extended/query_methods/json.rb

@@ -263,7 +263,7 @@ def select_row_to_json(from = nil, **options, &block)
       #   - as: [Symbol or String] (default="results"): What the column will be aliased to
       #
       #
-      #   - value: [Symbol or String] (defaults=[key]): How the response should handel the json value return
+      #   - value: [Symbol or String] (defaults=[key]): How the response should handle the json value return
       #
       # Example:
       #

spec/sql_inspections/arel/array_spec.rb

@@ -55,7 +55,7 @@
       expect(query).to match_regex(/'tag' = ALL\("users"\."tags"\)/)
     end
 
-    it "create all predicates that contain a interger value" do
+    it "create all predicates that contain a integer value" do
       query = arel_table.where(arel_table[:tags].all(2)).to_sql
       expect(query).to match_regex(/2 = ALL\("users"\."tags"\)/)
     end