added ZSTD_initStaticDDict()

doc/zstd_manual.html

@@ -709,8 +709,9 @@ size_t ZSTD_CDict_loadDictionary(ZSTD_CDict* cdict, const void* dict, size_t dic
 
 <pre><b>ZSTD_DDict* ZSTD_createDDict_byReference(const void* dictBuffer, size_t dictSize);
 </b><p>  Create a digested dictionary, ready to start decompression operation without startup delay.
-  Dictionary content is simply referenced, and therefore stays in dictBuffer.
-  It is important that dictBuffer outlives DDict, it must remain read accessible throughout the lifetime of DDict 
+  Dictionary content is referenced, and therefore stays in dictBuffer.
+  It is important that dictBuffer outlives DDict,
+  it must remain read accessible throughout the lifetime of DDict 
 </p></pre><BR>
 
 <pre><b>ZSTD_DDict* ZSTD_createDDict_advanced(const void* dict, size_t dictSize,