README formatting fixes

Author: cruisercoder

README.md

@@ -47,51 +47,50 @@ foreach (row; range) {
 ```D
 import std.database.sqlite;
 createDatabase("file:///demo.sqlite")
-.connection()
+    .connection()
     .query("select * from t1")
     .writeResult();
-    ```
+```
 
 #### field access
-    ```D
-    import std.database.sqlite;
-    auto db = createDatabase("file:///testdb");
-    auto rowSet = db.connection().query("select name,score from score");
-    foreach (r; rowSet) {
-        writeln(r[0].as!string,",",r[1].as!int);
-    }
-
+```D
+import std.database.sqlite;
+auto db = createDatabase("file:///testdb");
+auto rowSet = db.connection().query("select name,score from score");
+foreach (r; rowSet) {
+    writeln(r[0].as!string,",",r[1].as!int);
+}
 ```
 
 #### select with input binding
 ```D
 import std.database.sqlite;
 int minScore = 50;
 createDatabase("file:///demo.sqlite")
-.connection()
+    .connection()
     .query("select * from t1 where score >= ?", minScore)
     .writeResult();
-    ```
+```
 
 #### insert with input binding
-    ```D
-    import std.database;
-    auto db = createDatabase("mydb");
-    auto con = db.connection();
-    auto stmt = con.statement("insert into table values(?,?)");
-    stmt.query("a",1);
-    stmt.query("b",2);
-    stmt.query("c",3);
-    ```
+```D
+import std.database;
+auto db = createDatabase("mydb");
+auto con = db.connection();
+auto stmt = con.statement("insert into table values(?,?)");
+stmt.query("a",1);
+stmt.query("b",2);
+stmt.query("c",3);
+```
 
 #### poly database setup (driver registration)
-    ```D
-    import std.database.poly;
-    Database.register!(std.database.sqlite.Database)();
-    Database.register!(std.database.mysql.Database)();
-    Database.register!(std.database.oracle.Database)();
-    auto db = createDatabase("mydb");
-    ```
+```D
+import std.database.poly;
+Database.register!(std.database.sqlite.Database)();
+Database.register!(std.database.mysql.Database)();
+Database.register!(std.database.oracle.Database)();
+auto db = createDatabase("mydb");
+```
 
 ### Notes