Merge pull request #32 from ZEXSM/add-docs-replacecharacters

#ZEXSM#add info by ReplaceCharacters to readme

README.md

@@ -266,7 +266,7 @@ var uri = new ODataQueryBuilder<ODataInfoContainer>("http://mock/odata")
 ```
 > $filter=concat(ODataKind/ODataCode/Code, '_1') eq 'test_code_1'
 
-## Usage convert functions
+## Usage other functions
 
 #### ConvertEnumToString
 ```csharp
@@ -286,6 +286,16 @@ var uri = new ODataQueryBuilder<ODataInfoContainer>("http://mock/odata")
 ```
 > $filter=ODataKind/OpenDate eq 2019-02-09
 
+#### ReplaceCharacters
+```csharp
+var constValue = "3 & 4";
+...
+.Filter((s, f) => s.ODataKind.ODataCode.Code == f.ReplaceCharacters(
+    constValue,
+    new Dictionary<string, string> { { "&", "%26" } }))
+```
+> $filter=ODataKind/ODataCode/Code eq '3 %26 4'
+
 ## Suppress exceptions
 
 :warning: __May result in loss of control over the expected result.__
@@ -309,5 +319,4 @@ var uri = builder
         && o.In(s.IdType, new[] { 123, 512 }))
     .ToUri()
 ```
-> http://mock/odata/ODataType?$filter=IdType in (123,512)
-```
+> http://mock/odata/ODataType?$filter=IdType in (123,512)