update documentation

Author: smilicev

.gitignore

@@ -37,4 +37,4 @@
 *.pyc
 
 /.idea
-/output
+/output

README.md

@@ -1,17 +1,17 @@
-# DNA Calibration
-DNA Calibration is a set of tools used for working with MetaHuman DNA files, bundled into a single package.
+# MetaHuman DNA Calibration
+MetaHuman DNA Calibration is a set of tools used for working with MetaHuman DNA files, bundled into a single package.
 DNA is an integral part of [MetaHuman](https://www.unrealengine.com/en-US/metahuman) identity.
 DNA files are created with [MetaHuman Creator](https://metahuman.unrealengine.com/) and downloaded with 
 [Quixel Bridge](https://docs.metahuman.unrealengine.com/en-US/downloading-metahumans-with-quixel-bridge/).
 
-DNA Calibration is a set of tools used for working with MetaHuman DNA files, bundled into a single package. We wanted to share this code to help users customize DNA files so they can better integrate the characters they create into their games and experiences.
-DNA Calibration tools are provided in a GitHub repository located at this address.
+MetaHuman DNA Calibration is a set of tools used for working with MetaHuman DNA files, bundled into a single package. We wanted to share this code to help users customize DNA files so they can better integrate the characters they create into their games and experiences.
+MetaHuman DNA Calibration tools are provided in a GitHub repository located at this address.
 
 
 # Overview
 For an explanation about how the repository is organized, [click here](docs/repository_organization.md).
 
-The DNA Calibration repository contains two distinct tools:
+The MetaHuman DNA Calibration repository contains two distinct tools:
 - [DNACalib](docs/dnacalib.md) (and its dependencies) 
 - [DNAViewer](docs/dna_viewer.md)
 
@@ -81,4 +81,4 @@ eg. `c:/dna_calibration` in Windows or `/home/user/dna_calibration` in Linux. Im
 See the [FAQ guide](docs/faq.md) for additional specifications.
 
 # License
-DNACalibration is released with [licence](LICENSE).
+MetaHuman DNA Calibration is released with [licence](LICENSE).

docs/faq.md

@@ -1,5 +1,25 @@
 # Frequently Asked Questions (FAQ)
 
+## Fix "RuntimeError: Error loading DNA: DNA signature mismatched, expected DNA, got ver?"
+
+DNA files are stored as [LFS](https://git-lfs.github.com/) files (Here is [another explanaintion](https://www.atlassian.com/git/tutorials/git-lfs) what LFS is). 
+This problem occurs when repo is downloaded as zip, and github then does not download LFS files as whole file, but as some metadata file.  
+Open that Ada.dna file in some editor file, from location were MetaHuman DNA Calibration is downloaded and then in 
+`data/dna/Ada.dna` (eg `c:/MetaHuman-DNA-Calibration/data/dna/Ada.dna` you will got this:
+
+```
+version https://git-lfs.github.com/spec/v1
+oid sha256:e764cfab938283231bcb3e5af1c7bcbec5154bab4804aafa1b5b7dc6e400ca5e
+size 73730354
+```
+Which is not valid DNA file. 
+
+There is two ways to fix this issue:
+- `git clone git clone https://github.com/EpicGames/MetaHuman-DNA-Calibration.git`
+- manually download [Ada.dna](../data/dna/Ada.dna) and/or [Taro.dna](../data/dna/Taro.dna), and put them in data directory 
+where you downloaded MetaHuman DNA Calibration. eg. `c:/MetaHuman-DNA-Calibration/data/dna`
+
+
 ## How do I distribute a Maya scene?
 
 Your scene should work out of the box if you include the following in the distribution: