doc - fix missing ` in various files

Author: jeremylt

interface/ceed-config.c

@@ -22,7 +22,7 @@ const char *CeedBuildConfiguration = CEED_BUILD_CONFIGURATION;
   @param[out] git_version A static string containing the Git commit description.
 
   If `git describe --always --dirty` fails, the string `"unknown"` will be provided.
-  This could occur if Git is not installed or if libCEED is not being built from a repository, for example.`
+  This could occur if Git is not installed or if libCEED is not being built from a repository, for example.
 
   @ref Developer
 

interface/ceed-preconditioning.c

@@ -438,7 +438,7 @@ static inline int CeedOperatorLinearAssembleAddDiagonalComposite(CeedOperator op
 }
 
 /**
-  @brief Build nonzero pattern for non-composite CeedOperator`.
+  @brief Build nonzero pattern for non-composite `CeedOperator`.
 
   Users should generally use @ref CeedOperatorLinearAssembleSymbolic().
 
@@ -1611,7 +1611,7 @@ int CeedOperatorGetOperatorAssemblyData(CeedOperator op, CeedOperatorAssemblyDat
 
   The `CeedOperatorAssemblyData` holds an array with references to every active `CeedBasis` used in the `CeedOperator`.
   An array with references to the corresponding active `CeedElemRestriction` is also stored.
-  For each active `CeedBasis, the `CeedOperatorAssemblyData` holds an array of all input and output @ref CeedEvalMode for this `CeedBasis`.
+  For each active `CeedBasis`, the `CeedOperatorAssemblyData` holds an array of all input and output @ref CeedEvalMode for this `CeedBasis`.
   The `CeedOperatorAssemblyData` holds an array of offsets for indexing into the assembled `CeedQFunction` arrays to the row representing each @ref CeedEvalMode.
   The number of input columns across all active bases for the assembled `CeedQFunction` is also stored.
   Lastly, the `CeedOperatorAssembly` data holds assembled matrices representing the full action of the `CeedBasis` for all @ref CeedEvalMode.

interface/ceed-qfunction.c

@@ -756,7 +756,7 @@ int CeedQFunctionCreateInteriorByName(Ceed ceed, const char *name, CeedQFunction
   @brief Create an identity `CeedQFunction`.
 
   Inputs are written into outputs in the order given.
-  This is useful for `CeedOperator that can be represented with only the action of a `CeedElemRestriction` and `CeedBasis`, such as restriction and prolongation operators for p-multigrid.
+  This is useful for `CeedOperator` that can be represented with only the action of a `CeedElemRestriction` and `CeedBasis`, such as restriction and prolongation operators for p-multigrid.
   Backends may optimize `CeedOperator` with this `CeedQFunction` to avoid the copy of input data to output fields by using the same memory location for both.
 
   @param[in]  ceed     `Ceed` object used to create the `CeedQFunction`

interface/ceed-vector.c

@@ -761,7 +761,7 @@ int CeedVectorScale(CeedVector x, CeedScalar alpha) {
 
   @param[in,out] y     target `CeedVector` for sum
   @param[in]     alpha scaling factor
-  @param[in]     x     second `CeedVector`, must be different than ``y`
+  @param[in]     x     second `CeedVector`, must be different than `y`
 
   @return An error code: 0 - success, otherwise - failure