Update standard-timespan-format-strings.md (#11599)

changed the typographic quotation marks to the ASCII ones

Author: alcazaco

docs/standard/base-types/standard-timespan-format-strings.md

@@ -37,9 +37,9 @@ ms.author: "ronpet"
 
 |Format specifier|Name|Description|Examples|  
 |----------------------|----------|-----------------|--------------|  
-|"c"|Constant (invariant) format|This specifier is not culture-sensitive. It takes the form `[-][d’.’]hh’:’mm’:’ss[‘.’fffffff]`.<br /><br /> (The "t" and "T" format strings produce the same results.)<br /><br /> More information: [The Constant ("c") Format Specifier](#Constant).|`TimeSpan.Zero` -> 00:00:00<br /><br /> `New TimeSpan(0, 0, 30, 0)` -> 00:30:00<br /><br /> `New TimeSpan(3, 17, 25, 30, 500)` -> 3.17:25:30.5000000|  
-|"g"|General short format|This specifier outputs only what is needed. It is culture-sensitive and takes the form `[-][d’:’]h’:’mm’:’ss[.FFFFFFF]`.<br /><br /> More information: [The General Short ("g") Format Specifier](#GeneralShort).|`New TimeSpan(1, 3, 16, 50, 500)` -> 1:3:16:50.5 (en-US)<br /><br /> `New TimeSpan(1, 3, 16, 50, 500)` -> 1:3:16:50,5 (fr-FR)<br /><br /> `New TimeSpan(1, 3, 16, 50, 599)` -> 1:3:16:50.599 (en-US)<br /><br /> `New TimeSpan(1, 3, 16, 50, 599)` -> 1:3:16:50,599 (fr-FR)|  
-|"G"|General long format|This specifier always outputs days and seven fractional digits. It is culture-sensitive and takes the form `[-]d’:’hh’:’mm’:’ss.fffffff`.<br /><br /> More information: [The General Long ("G") Format Specifier](#GeneralLong).|`New TimeSpan(18, 30, 0)` -> 0:18:30:00.0000000 (en-US)<br /><br /> `New TimeSpan(18, 30, 0)` -> 0:18:30:00,0000000 (fr-FR)|  
+|"c"|Constant (invariant) format|This specifier is not culture-sensitive. It takes the form `[-][d'.']hh':'mm':'ss['.'fffffff]`.<br /><br /> (The "t" and "T" format strings produce the same results.)<br /><br /> More information: [The Constant ("c") Format Specifier](#Constant).|`TimeSpan.Zero` -> 00:00:00<br /><br /> `New TimeSpan(0, 0, 30, 0)` -> 00:30:00<br /><br /> `New TimeSpan(3, 17, 25, 30, 500)` -> 3.17:25:30.5000000|  
+|"g"|General short format|This specifier outputs only what is needed. It is culture-sensitive and takes the form `[-][d':']h':'mm':'ss[.FFFFFFF]`.<br /><br /> More information: [The General Short ("g") Format Specifier](#GeneralShort).|`New TimeSpan(1, 3, 16, 50, 500)` -> 1:3:16:50.5 (en-US)<br /><br /> `New TimeSpan(1, 3, 16, 50, 500)` -> 1:3:16:50,5 (fr-FR)<br /><br /> `New TimeSpan(1, 3, 16, 50, 599)` -> 1:3:16:50.599 (en-US)<br /><br /> `New TimeSpan(1, 3, 16, 50, 599)` -> 1:3:16:50,599 (fr-FR)|  
+|"G"|General long format|This specifier always outputs days and seven fractional digits. It is culture-sensitive and takes the form `[-]d':'hh':'mm':'ss.fffffff`.<br /><br /> More information: [The General Long ("G") Format Specifier](#GeneralLong).|`New TimeSpan(18, 30, 0)` -> 0:18:30:00.0000000 (en-US)<br /><br /> `New TimeSpan(18, 30, 0)` -> 0:18:30:00,0000000 (fr-FR)|  
 
 <a name="Constant"></a>   
 ## The Constant ("c") Format Specifier