Add 5 new transcriptions (all 1968).

[darrencubitt]

Replaced illegible text with '?' but tried to keep word lengths accurate. The monospace font of the typewriter makes this easier - just do a vertical comparison to make sure characters are aligned.

Tindall keeps writing 'PNGCS' instead of 'PGNCS' (New word: Tindallism!). I have used his spelling so perhaps a new definition in the glossary is warranted?

Used double-underscore to represent underlining.

I deserve a beer for 68-PA-T-57A. Source four quality sucks.

Will continue work on 1968 as this is the area which interests me most.

[seanredmond]

Thank you! 🍺

I ran into file encoding issues when jekyll is trying to build. It looks like 68-PA-T-48A.md and 68-PA-T-61A.md are ASCII which is fine, but the other three are ISO-8859 (I think for things like the degrees symbol). Can you resave them as utf-8 update the PR? This is what jekyll is expecting.

Also 66-PA-T-59A.md should be named 68-PA-T-59A.md.

[darrencubitt]

Sorry about the UTF-8 problem - didn't notice that. Fixed now. Erroneous filename also fixed (along with some typos) and, since we're at it, I have added 68-PA-T-55A.

[darrencubitt]

Fixed a few other issues which may have been problematic (apparently Jekyll doesn't like the UTF-8 byte order marks which every Win32 editor insists on inserting. I have now made a script to remove them). I also seem to have a bad habit of typing '66' instead of '68'. I have fixed the offending files.

Also just noticed I have contributed a transcription which another user (joedavis) has an outstanding pull request on (68-PA-T-49A). Just so you are aware.