Documentation for fn2hash is outdated

[sei-eschwartz]

Describe the bug

• The non-classic function hasher is called "Kaiju Function Hashing" instead of "CERT Function Hashing"
• I don't see a "CERT Function Hash Viewer" or "CERT Function Intersection Visualizer" under the Windows menu.

[sei-eschwartz]

Ah, another big documentation problem is that the user needs to manually enable the plugins from the CODE BROWSER window.