Update README.md

Author: james34602

README.md

@@ -83,7 +83,7 @@ The tube they used to model is 12AX7 double triode. They also provide a final st
 Original is written in C++, for some reasons I ported it to C implementation.
 
 #### Example circuit for triode amplifier and tonestack:
-<a><img src="https://raw.githubusercontent.com/james34602/JamesDSPManager/master/Misc/Valve/TubeTonestack.svg"/></a>
+![Diagram1](./Misc/Valve/TubeTonestack.svg)
 
 #### 6. What is Misc folder does?
 
@@ -190,4 +190,4 @@ Source code is provided under the [GPL V2](https://www.gnu.org/licenses/old-lice
 1. Matlab, for verifying algorithm correctness
 
 # Structure map generated by Understand (Hosted on rawgit)
-<a><img src="https://rawgit.com/james34602/JamesDSPManager/master/libjamesdsp_StructureMap.svg"/></a>
+![Diagram1](./libjamesdsp_StructureMap.svg)