Fix syntax in docs

Author: thebugcatcher

lib/rummage_ecto/custom_hooks/keyset_paginate.ex

@@ -37,7 +37,7 @@ defmodule Rummage.Ecto.CustomHooks.KeysetPaginate do
 
   ```elixir
   Rummage.Ecto.CustomHooks.KeysetPaginate.run(Product,
-    %{per_page: 10, page: 1, last_seen_pk: 10, pk: :id}
+    %{per_page: 10, page: 1, last_seen_pk: 10, pk: :id})
   ```
 
   ## When to Use KeysetPaginate?

lib/rummage_ecto/custom_hooks/simple_search.ex

@@ -44,7 +44,7 @@ defmodule Rummage.Ecto.CustomHooks.SimpleSearch do
   ```elixir
   Rummage.Ecto.CustomHooks.SimpleSearch.run(Product, %{available:
     %{search_type: :eq,
-    search_term: true}}
+    search_term: true}})
   ```
 
   This can be used for a search with multiple fields as well. Say, we want to
@@ -55,7 +55,7 @@ defmodule Rummage.Ecto.CustomHooks.SimpleSearch do
     %{available: %{search_type: :eq,
       search_term: true},
     %{price: %{search_type: :lt,
-      search_term: 10.0}}
+      search_term: 10.0}})
   ```
 
   ## Assoications:

lib/rummage_ecto/hooks/search.ex

@@ -42,7 +42,7 @@ defmodule Rummage.Ecto.Hooks.Search do
   ```elixir
   Rummage.Ecto.Hooks.Search.run(Product, %{available: %{assoc: [],
     search_type: :eq,
-    search_term: true}}
+    search_term: true}})
   ```
 
   This can be used for a search with multiple fields as well. Say, we want to
@@ -55,7 +55,7 @@ defmodule Rummage.Ecto.Hooks.Search do
       search_term: true},
     %{price: %{assoc: [],
       search_type: :lt,
-      search_term: 10.0}}
+      search_term: 10.0}})
   ```
 
   ## Assoications: