Update Case_study.md

Doc/Case_study.md

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 # RAWcooked Case Study  
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 ## BFI National Archive  
 ### Joanna White, Knowledge & Collections Developer
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 At the [BFI National Archive](https://www.bfi.org.uk/bfi-national-archive) we have been encoding DPX sequences to FFV1 Matroska since late 2019. In that time our RAWcooked workflow has evolved with DPX resolutions and flavours and changes in project priorities - Ev.  Today we have a fairly hands-off automated workflow which handles 2K, 4K, RGB, Luma, DPX and Tiff DPX.  This workflow is built on some of the flags developed by the Media Area. This includes the '--all' flag, originally an idea suggested by [NYPL](https://www.nypl.org/), more details in the [Encoding]() section below.  
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+This case study is broken into the stages our encoding workflow follows and the Media Area tools we use to achieve our goals.  We have four distinct stages:  
+* Server configuration  
+* Image sequence assessment  
+* Encoding the image sequence  
+* Encoding log assessments  
+* FFV1 MKV validation  
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+### Server configuration
 To encode our DPX and TIFF sequences we have a single server that completes this work for all our different NAS storage paths.
 
 Intel Xeon Gold 5218 @ 2.30GHz  
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 8-core @ 3 GHz (estimated)  
 8 threads  
 
-When encoding 2K RGB we generally reach 4-5 FPS from FFmpeg encoding on the lower machine. Now running 4K scans it's often 1 FPS or less on the top machine.
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-This case study is broken into the stages our encoding workflow follows and the Media Area tools we use to achieve our goals.  We have four distinct stages:  
-* Image sequence assessment
-* Encoding the image sequence
-* Encoding log assessments
-* FFV1 MKV validation
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+When encoding 2K RGB we generally reach between 4 and 5 FPS from FFmpeg encoding on the lower machine. Now running 4K scans it's often 1 FPS or less on the top machine.  
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 ## Image sequence assessment  
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