Update README.md

AMITT_Design_Guides/README.md

@@ -7,7 +7,7 @@ These are introductions to the AMITT family of disinformation models: STIX, TTPs
 
 ## Guides
 
-* [AMITT Design Guide](00_AMITT Design Guide_version1.pdf) - design and philosophy behind AMITT frameworks
+* [AMITT Design Guide](00_AMITT_Design_Guide_version1.pdf) - design and philosophy behind AMITT frameworks
 * [AMITT User Guide](05_AMITT_User_Guide.pdf) - ways to work with AMITT frameworks
 * [AMITT TTP Guide](01_AMITT_TTP_Guide.pdf) - describes each of the AMITT and counter TTPs
 * [Proposed changes to AMITT](02_Proposed_Changes_to_AMITT.pdf)